Best time to apply for Delta American Express cards based on offer history

Ask any points and miles enthusiast, and they'll tell you welcome offers are one of the most important parts of their strategy. The welcome offers we've earned with our cards have helped us book some great trips, both in the U.S. and abroad.If you're a frequent Delta Air Lines flyer, you're probably eyeing one of its cobranded cards to help make your experience more enjoyable. Since American Express limits cardmembers to one welcome bonus per lifetime, applying for a Delta Amex card at the right time is very important.In this guide, we'll go over the offer history and best time to apply for each Delta card so you're never in the dark about when to apply. Keep in mind that offers can change at any time, and some listed on this page may no longer be available.Note that we'll only discuss publicly available welcome offers here. However, you might receive targeted offers with more bonus miles.Related: Current Delta American Express credit card welcome bonusesBest Delta American Express welcome offersCardBest welcome offer we've seenWhen to applyDelta SkyMiles® Blue American Express CardEarn 15,000 bonus miles after spending $1,000 on purchases in the first three months of card membership.Over 10,000 milesDelta SkyMiles® Gold American Express CardEarn up to 90,000 bonus miles: 70,000 bonus miles after spending $3,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $5,000) in the first six months of card membership.Over 70,000 milesDelta SkyMiles® Platinum American Express CardEarn up to 100,000 bonus miles: 80,000 bonus miles after spending $4,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $6,000) in the first six months of card membership.Over 80,000 milesDelta SkyMiles® Reserve American Express CardEarn 125,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.Over 90,000 milesDelta SkyMiles® Gold Business American Express CardEarn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.Over 70,000 milesDelta SkyMiles® Platinum Business American Express CardEarn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.Over 90,000 milesDelta SkyMiles® Reserve Business American Express CardEarn 200,000 bonus miles after spending $20,000 on purchases in the first six months of card membership.Over 100,000 milesDelta SkyMiles Blue American Express CardIf you want to start with a no-annual-fee Delta card (see rates and fees), the Delta SkyMiles Blue is for you. While it lacks the perks of more premium Delta cards, it still offers enough to make it worthwhile for the occasional Delta flyer.THE POINTS GUYCurrently, new cardholders can earn 10,000 bonus miles after spending $1,000 on purchases in the first six months of card membership.Highest welcome offerThe highest welcome offer we've seen on the Delta Blue Amex allowed new cardmembers to earn 15,000 bonus miles after spending $1,000 on purchases in the first three months of card membership (no longer available).When to applyIf you see an offer over 10,000 miles, it's a great time to apply. We haven't seen this card receive a limited-time offer in several years, so it may not be worth waiting a long time for a potential elevated offer if you're interested in applying.Reward your inbox with the TPG Daily newsletterJoin over 700,000 readers for breaking news, in-depth guides and exclusive deals from TPG’s expertsBy signing up, you will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time.Learn more: Delta SkyMiles Blue American Express CardDelta SkyMiles Gold American Express CardThe Delta SkyMiles Gold offers a solid range of perks for its $150 annual fee ($0 introductory annual fee for the first year; see rates and fees), including priority boarding and two free checked bags (first checked bag is free on flights worldwide and second checked bag is free on U.S. domestic flights).It's the ideal choice for any Delta flyer who doesn't want to commit to a premium annual fee.THE POINTS GUYHere are the offers we have seen on the Delta SkyMiles Gold.Welcome offer historyApproximate dateOfferValue*August 2026 to nowFind out your offer and see if you are eligible for as high as 80,000 bonus miles, plus earn a $250 statement credit after spending $3,000 on purchases in the first six months of card membership. You may not be eligible for the maximum offer amount. Offer ends Nov. 4.Up to $1,210 (including the statement credit)July to August 2026Find out your offer and see if you are eligible for as high as 80,000 bonus miles after spending $2,000 on purchases in the first six months of card membership. Welcome offers vary, and you may not be eligible for an offer.Up to $960June to July 2026Earn up to 90,000 bonus miles: 70,000 bonus miles after spending $3,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $5,000) in the first six months of card membership.Up to $1,080April to June 2026 Find out your offer and see if you are eligible for as high as 80,000 bonus miles after spending $2,000 on purchases in the first six months of card membership. Welcome offers vary, and you may not be eligible for an offer.Up to $960January to April 2026Earn up to 90,000 bonus miles: 70,000 bonus miles after spending $3,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $5,000) in the first six months of card membership.Up to $1,080October 2025 to January 2026Earn 50,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$600September to October 2025Earn 80,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$960July to September 2025Earn 50,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$600June to July 2025Earn 80,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$960April to June 2025Earn 50,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$600February to April 2025Earn 80,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$960October 2024 to February 2025Earn 50,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$600September to October 2024Earn 80,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$960July to September 2024Earn 40,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$480June to July 2024Earn 65,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$780March to June 2024Earn 40,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$480February to March 2024Earn 70,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$840August 2023 to February 2024Earn 40,000 bonus miles after spending $2,000 on purchases in the first six months of card membership.$480*Welcome offer values are based on TPG's October 2026 valuations and are not from the issuer.Currently, new cardholders can apply and find out if their welcome offer is as high as 80,000 bonus miles, plus earn a $250 statement credit after spending $3,000 on purchases in the first six months of card membership. You may not be eligible for the maximum offer amount. TPG's valuations place this offer as worth up to $1,210 (including the statement credit). Offer ends Nov. 4.Highest welcome offerThe highest offer we've seen allowed new cardmembers to earn up to 90,000 bonus miles: 70,000 bonus miles after spending $3,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $5,000) in the first six months of card membership (no longer available).When to applyWe recommend applying when you are able to earn 70,000 or more bonus miles.Learn more: Delta SkyMiles Gold American Express CardRelated: Is the Delta Gold Amex annual fee worth it?Delta SkyMiles Platinum American Express CardIf you're a Delta loyalist but the Delta Reserve Amex is out of your price range, consider the $350-a-year Delta SkyMiles Platinum instead (see rates and fees).THE POINTS GUYHere are the offers we have seen on the Delta SkyMiles Platinum.Welcome offer historyApproximate dateOfferValue*August 2026 to nowFind out your offer and see if you are eligible for as high as 90,000 bonus miles, plus earn a $300 statement credit after spending $4,000 on purchases in the first six months of card membership. You may not be eligible for the maximum offer amount. Offer ends Nov. 4.Up to $1,380 (including the statement credit)July to August 2026Find out your offer and see if you are eligible for as high as 90,000 bonus miles after spending $3,000 on purchases in the first six months of card membership. Welcome offers vary, and you may not be eligible for an offer.Up to $1,080June to July 2026Earn up to 100,000 bonus miles: 80,000 bonus miles after spending $4,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $6,000) in the first six months of card membership.Up to $1,200April to June 2026Find out your offer and see if you are eligible for as high as 90,000 bonus miles after spending $3,000 on purchases in the first six months of card membership. Welcome offers vary, and you may not be eligible for an offer.Up to $1,080January to April 2026Earn up to 100,000 bonus miles: 80,000 bonus miles after spending $4,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $6,000) in the first six months of card membership.Up to $1,200October 2025 to January 2026 Earn 60,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$720September to October 2025Earn 90,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$1,080July to September 2025Earn 60,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$720June to July 2025Earn 90,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$1,080April to June 2025Earn 60,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$720February to April 2025Earn 90,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$1,080October 2024 to February 2025Earn 60,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$720September to October 2024Earn 90,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$1,080July to September 2024Earn 50,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$600June to July 2024Earn 85,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$1,020March to June 2024Earn 50,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$600February to March 2024Earn 90,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$1,080August 2023 to February 2024Earn 50,000 bonus miles after spending $3,000 on purchases in the first six months of card membership.$600*Welcome offer values are based on TPG's valuations and are not from the issuer.Currently, new cardholders can apply and find out if their welcome offer is as high as 90,000 bonus miles, plus earn a $300 statement credit after spending $4,000 on purchases in the first six months of card membership. You may not be eligible for the maximum offer amount. TPG's valuations place this offer as worth up to $1,380 (including the statement credit). Offer ends Nov. 4.Highest welcome offerThe highest offer we've seen allowed new cardmembers to earn up to 100,000 bonus miles: 80,000 bonus miles after spending $4,000 on purchases in the first six months of card membership, plus an additional 20,000 bonus miles after spending an additional $2,000 on purchases (for a total of $6,000) in the first six months of card membership (no longer available).When to applyWe recommend applying whenever the card's welcome offer is at or above 80,000 miles.Learn more: Delta SkyMiles Platinum American Express CardRelated: Is the Delta Platinum Amex worth the annual fee?Delta SkyMiles Reserve American Express CardDie-hard Delta fans will love the perks that come with this top-tier card, including a companion certificate each cardmember year and Delta Sky Club access (subject to limitations). It comes with a steep $650 annual fee (see rates and fees), but true Delta loyalists will find the Reserve's benefits more than make up for that.THE POINTS GUYHere are the offers we have seen on the Delta SkyMiles Reserve.Welcome offer historyApproximate dateOfferValue*August 2026 to nowEarn two domestic round-trip Delta Comfort Flight Certificates (valid for travel to the U.S. 48, Puerto Rico, or the U.S. Virgin Islands) and 50,000 bonus miles after spending $10,000 on purchases in the first six months of card membership. A 21+ day advance purchase is required; up to $80 per person in taxes and fees apply. Other restrictions apply. Offer ends Nov. 4.$600, plus the value of the Comfort flight certificatesJuly 2026 to August 2026Find out your offer and see if you are eligible for as high as 100,000 bonus miles after spending $5,000 on purchases in the first six months of card membership. Welcome offers vary, and you may not be eligible for an offer.Up to $1,200June to July 2026Earn up to 125,000 bonus miles: 100,000 bonus miles after spending $6,000 on purchases in the first six months of card membership, plus an additional 25,000 bonus miles after spending an additional $3,000 on purchases (for a total of $9,000) in the first six months of card membership.Up to $1,500April to June 2026 Find out your offer and see if you are eligible for as high as 100,000 bonus miles after spending $5,000 on purchases in the first six months of card membership. Welcome offers vary, and you may not be eligible for an offer.Up to $1,200 January to April 2026 Earn up to 125,000 bonus miles: 100,000 bonus miles after spending $6,000 on purchases in the first six months of card membership, plus an additional 25,000 bonus miles after spending an additional $3,000 on purchases (for a total of $9,000) in the first six months of card membership.Up to $1,500October 2025 to January 2026 Earn 70,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$840September to October 2025Earn 125,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,500July to September 2025Earn 70,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$840June to July 2025Earn 100,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,200April to June 2025Earn 70,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$840February to April 2025Earn 100,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,200October 2024 to February 2025Earn 70,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$840September to October 2024Earn 100,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,200July to September 2024Earn 60,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$720June to July 2024Earn 95,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,140March to June 2024Earn 60,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$720February to March 2024Earn 100,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,200August 2023 to February 2024Earn 60,000 bonus miles after spending $5,000 on purchases in the first six months of card membership.$720*Welcome offer values are based on TPG's valuations and are not from the issuer.Currently, new cardmembers can earn two domestic round-trip Delta Comfort Flight Certificates (valid for travel to the U.S. 48, Puerto Rico, or the U.S. Virgin Islands) and 50,000 bonus miles after spending $10,000 on purchases in the first six months of card membership. A 21+ day advance purchase is required; up to $80 per person in taxes and fees apply. Other restrictions apply. Offer ends Nov. 4.TPG's valuations place this offer as worth $600, plus the value of the comfort flight certificates.Highest welcome offerThis card's highest offer we've seen allowed new cardmembers to earn 125,000 bonus miles after spending $6,000 on purchases in the first six months of card membership (no longer available).When to applyWe recommend applying whenever the card's welcome offer is at or above 90,000 miles.Learn more: Delta SkyMiles Reserve American Express CardRelated: Is the Delta Reserve Amex worth the annual fee?Delta SkyMiles Gold Business American Express CardSmall-business owners and freelancers who fly Delta often may find great value in the Delta Gold Business Amex. Like the consumer Delta Gold, this card comes with a $0 introductory annual fee for the first year, then $150 each year after (see rates and fees for the Gold Business).THE POINTS GUYHere are the offers we have seen on the Delta SkyMiles Gold Business.Welcome offer historyApproximate dateOfferValue*August 2026 to nowEarn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership. Offer ends Nov. 4.$1,080July to August 2026Earn 60,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$720June to July 2026Earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,080April to June 2026 Earn 60,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$720 January to April 2026Earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,080October 2025 to January 2026 Earn 60,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$720September to October 2025Earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,080July to September 2025Earn 60,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$720June to July 2025Earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,080April to June 2025Earn 60,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$720February to April 2025Earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,080October 2024 to February 2025Earn 55,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$660September to October 2024Earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$1,080July to September 2024Earn 55,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$660June to July 2024Earn 75,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$900March to June 2024Earn 55,000 bonus miles after spending $4,000 on purchases in the first six months of card membership.$660February to March 2024Earn 80,000 bonus miles after spending $6,000 on purchases in the first three months of card membership.$960October 2023 to February 2024Earn 50,000 bonus miles after spending $2,000 on purchases in the first three months of card membership.$600September to October 2023Earn up to 80,000 bonus miles: 75,000 bonus miles after spending $6,000 on purchases in the first six months of card membership, plus an additional 5,000 bonus miles after you make an eligible Delta purchase with your new card within your first six months.Up to $960*Welcome offer values are based on TPG's valuations and are not from the issuer.Currently, new cardmembers can earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership. Offer ends Nov. 4. TPG's valuations place this offer at $1,080.Highest welcome offerThe highest offer we've seen is the current welcome offer, which allows new cardmembers to earn 90,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.When to applyWe recommend applying when the offer is for at least 70,000 bonus miles.Learn more: Delta SkyMiles Gold Business American Express CardDelta SkyMiles Platinum Business American Express CardIf you're a business owner, consider whether the Delta Platinum Business makes more sense for you than its consumer counterpart. They both have the same $350 annual fee (see rates and fees for the Platinum Business), so the choice will come down to which card's benefits suit you more.THE POINTS GUYHere are the offers we have seen on the Delta SkyMiles Platinum Business.Welcome offer historyApproximate dateOfferValue*August 2026 to nowEarn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership. Offer ends Nov. 4.$1,200July to August 2026Earn 70,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$840June to July 2026Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200April to June 2026 Earn 70,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$840January to April 2026 Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200October 2025 to January 2026Earn 70,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$840September to October 2025Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200July to September 2025Earn 70,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$840June to July 2025Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200April to June 2025Earn 70,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$840February to April 2025Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200October 2024 to February 2025Earn 65,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$780September to October 2024Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200July to September 2024Earn 65,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$780June to July 2024Earn 95,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,140March to June 2024Earn 65,000 bonus miles after spending $6,000 on purchases in the first six months of card membership.$780February to March 2024Earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership.$1,200October 2023 to February 2024Earn 60,000 bonus miles after spending $3,000 on purchases in the first three months of card membership.$720September to October 2023Earn up to 100,000 bonus miles: 90,000 bonus miles after spending $8,000 on purchases in the first six months of card membership, plus an additional 10,000 bonus miles after you make an eligible Delta purchase with your new card within your first six months of card membership.Up to $1,200*Welcome offer values are based on TPG's valuations and are not from the issuer.Currently, new cardmembers can earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membership. TPG's valuations place this offer at $1,200.Highest welcome offerThe highest offer we've seen on this card is the current welcome offer, which allows new cardmembers to earn 100,000 bonus miles after spending $8,000 on purchases in the first six months of card membershipWhen to applyIf you see a welcome offer for 90,000 miles or more on this card, it's the right time to apply.Learn more: Delta SkyMiles Platinum Business American Express CardDelta SkyMiles Reserve Business American Express CardBusiness owners who always fly Delta should look into Amex's top-tier Delta business card, the $650-a-year Delta SkyMiles Reserve Business (see rates and fees).THE POINTS GUYHere are the offers we have seen on the Delta SkyMiles Reserve Business.Welcome offer historyApproximate dateOfferValue*August 2026 to nowEarn 200,000 bonus miles after spending $20,000 on purchases in the first six months of card membership. Offer ends Nov. 4.$2,400July to August 2026Earn 80,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$960June to July 2026Earn 125,000 bonus miles after spending $15,000 on purchases in the first six months of card membership.$1,500April to June 2026 Earn 80,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$960 January to April 2026 Earn 125,000 bonus miles after spending $15,000 on purchases in the first six months of card membership.$1,500October 2025 to January 2026 Earn 80,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$960September to October 2025Earn 125,000 bonus miles after spending $15,000 on purchases in the first six months of card membership.$1,500July to September 2025Earn 80,000 bonus miles after spending $10,000 on purchases in the first six months of card membership.$960June to July 2025Earn 110,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$1,320April to June 2025Earn 80,000 bonus miles after spending $10,000 on purchases in the first six months of card membership.$960February to April 2025Earn 110,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$1,320October 2024 to February 2025Earn 80,000 bonus miles after spending $10,000 on purchases in the first six months of card membership.$960September to October 2024Earn 110,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$1,320July to September 2024Earn 75,000 bonus miles after spending $10,000 on purchases in your first six months of card membership.$900June to July 2024Earn 110,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$1,320March to June 2024Earn 75,000 bonus miles after spending $10,000 on purchases in the first six months of card membership.$900February to March 2024Earn 110,000 bonus miles after spending $12,000 on purchases in the first six months of card membership.$1,320October 2023 to February 2024Earn 70,000 bonus miles after spending $5,000 on purchases in the first three months of card membership.$840September to October 2023Earn up to 110,000 bonus miles: 100,000 bonus miles after spending $12,000 on purchases in the first six months of card membership, plus an additional 10,000 bonus miles after you make an eligible Delta purchase with your new card within your first six months.Up to $1,320*Welcome offer values are based on TPG's valuations and are not from the issuer.Currently, new cardmembers can earn 200,000 bonus miles after spending $20,000 on purchases in the first six months of card membership. Offer ends Nov. 4. TPG's valuations place this offer at $2,400.Highest welcome offerThe highest offer we've seen is the current offer, which allows new cardmembers to earn 200,000 bonus miles after spending $20,000 on purchases in the first six months of card membership.When to applyWith this card, you'll want to wait for a welcome offer of over 100,000 miles.Learn more: Delta SkyMiles Reserve Business American Express CardBottom lineAs long as you keep this guide handy, you'll always know when it's the right time to apply for a Delta Amex card. Remember that Amex only allows cardmembers to earn one welcome bonus per card in a lifetime, so it's crucial to apply at the right time.To learn more about credit card bonus offers over time, see the following:The best time to apply for these popular Capital One credit cards based on offer historyThe best time to apply for these popular Chase credit cards based on offer historyThe best time to apply for these popular Citi cards based on offer historyThe best time to apply for these popular American Express cards based on offer historyFor rates and fees on the Amex Delta Blue, click here.For rates and fees on the Amex Delta Gold, click here.For rates and fees on the Amex Delta Platinum, click here.For rates and fees on the Amex Delta Reserve, click here.For rates and fees on the Amex Delta Gold Business, click here.For rates and fees on the Amex Delta Platinum Business, click here.For rates and fees on the Amex Delta Reserve Business, click here.