30 major US airports with the most departure delays, ranked

If you're hoping to get to your destination on time, the airport you fly from could make a difference.The following ranking is based on Bureau of Transportation Statistics data of major airports' on-time departure performance, covering January through June 2026.The BTS has compiled this data from monthly on-time reports filed by US passenger airlines. A flight is considered on time if it departs from the gate less than 15 minutes after its scheduled departure time.To provide context on airport scale and airline mix, additional information for each airport has also been compiled from BTS.The number of scheduled flights for departures covers the 12 months ending May 2026. The top carriers also cover the period from June 2025 to May 2026 and are calculated based on passenger shares for both arrivals and departures.It's important to note that delays at many of these airports are contingent on weather conditions, such as hurricanes in Florida, New England snowstorms, and Arizona's heat. That could explain why some of these airports are on this list.Here are the 30 major US airports ranked by on-time departure performance, from best to worst: 30. Salt Lake City International Airport Salt Lake City International Airport had the highest on-time departure rate. Justin Sullivan/Getty Images On-time departure rate, January-June 2026: 83.73%Scheduled flights, June 2025-May 2026: 121,882Top carriers, June 2025-May 2026: Delta 56.35%, SkyWest (15.98%), Southwest (10.42%) 29. Washington Dulles International Airport Washington Dulles International Airport had the second-highest on-time departure rate. Finn Gomez/Getty Images On-time departure rate, January-June 2026: 82.20%Scheduled flights, June 2025-May 2026: 96,869Top carriers, June 2025-May 2026: United (58.85%), Mesa (5.67%), Delta (3.88%) 28. Seattle-Tacoma International Airport Seattle-Tacoma International Airport ranked high for on-time departure rates. Mak Studio/Getty Images On-time departure rate, January-June 2026: 79.66%Scheduled flights, June 2025-May 2026: 188,049Top carriers, June 2025-May 2026: Alaska (48.63%), Delta (19.70%), SkyWest (7.68%) 27. Minneapolis-Saint Paul International Airport The largest carrier by passenger share at Minneapolis-Saint Paul International Airport is Delta. Davslens Photography/Getty Images On-time departure rate, January-June 2026: 79.03%Scheduled flights, June 2025-May 2026: 142,608Top carriers, June 2025-May 2026: Delta (56.73%), SkyWest (9.31%), Endeavor (5.79%) 26. Newark Liberty International Airport At Newark Liberty International Airport, the airline with the biggest passenger carrier share by far is United. Mak Studio/Getty Images On-time departure rate, January-June 2026: 79.02%Scheduled flights, June 2025-May 2026: 138,322Top carriers, June 2025-May 2026: United (60.12%), Spirit* (7.57%), American (5.70%)*Spirit Airlines is no longer operating and ceased operations in May 2026. 25. George Bush Intercontinental Airport At George Bush Intercontinental Airport, the airline with the biggest passenger carrier share by far is United. hapabapa/Getty Images On-time departure rate, January-June 2026: 79.01%Scheduled flights, June 2025-May 2026: 173,551Top carriers, June 2025-May 2026: United (56.94%), Mesa (9.87%), Spirit (5.62%) 24. Los Angeles International Airport Los Angeles International Airport ranks 24th in departure delays. Ekaterina Chizhevskaya/Getty Images On-time departure rate, January-June 2026: 78.76%Scheduled flights, June 2025-May 2026: 201,013Top carriers, June 2025-May 2026: Delta (22.38%), United (18.69%), American (17.69%) 23. Hartsfield-Jackson Atlanta International Airport Hartsfield-Jackson Atlanta International Airport is routinely ranked by OAG as the world's busiest airport by passenger traffic. Kirkikis/Getty Images On-time departure rate, January-June 2026: 77.44%Scheduled flights, June 2025-May 2026: 348,958Top carriers, June 2025-May 2026: Delta (74.72%), Frontier (7.00%), Southwest (4.53%) 22. Philadelphia International Airport At Philadelphia International Airport, the airline with the biggest passenger carrier share by far is American. Matthew Hatcher/Getty Images On-time departure rate, January-June 2026: 77.08%Scheduled flights, June 2025-May 2026: 130,566Top carriers, June 2025-May 2026: American (47.43%), Frontier (11.83%), Delta (6.43%) 21. John F. Kennedy International Airport John F. Kennedy International Airport ranked 21. AlexandreFagundes/Getty Images On-time departure rate, January-June 2026: 76.38%Scheduled flights, June 2025-May 2026: 124,603Top carriers, June 2025-May 2026: Delta (33.27%), JetBlue (30.54%), American (12.85%) 20. Phoenix Sky Harbor International Airport The air traffic control tower at Phoenix Sky Harbor International Airport. Melissa Kopka/Getty Images On-time departure rate, January-June 2026: 76.18%Scheduled flights, June 2025-May 2026: 208,792Top carriers, June 2025-May 2026: Southwest (34.51%), American (32.75%), Delta (6.95%) 19. Denver International Airport Denver International Airport is one of the world's busiest airports. Michael Ciaglo/Getty Images On-time departure rate, January-June 2026: 76.14%Scheduled flights, June 2025-May 2026: 326,928Top carriers, June 2025-May 2026: United (40.69%), Southwest (30.40%), Frontier (9.85%) 18. Boston Logan International Airport At Boston Logan International Airport, the airline with the biggest passenger carrier share is JetBlue. Alexander Farnsworth/Getty Images On-time departure rate, January-June 2026: 76.07%Scheduled flights, June 2025-May 2026: 161,772Top carriers, June 2025-May 2026: JetBlue (27.10%), Delta (22.14%), American (13.93%) 17. Tampa International Airport Tampa International Airport was ranked 17th. Mike Ehrmann/Getty Images On-time departure rate, January-June 2026: 75.85%Scheduled flights, June 2025-May 2026: 84,484Top carriers, June 2025-May 2026: Southwest (25.57%), Delta (19.29%), American (16.71%) 16. Detroit Metropolitan Wayne County Airport An express tram at Detroit Metropolitan Wayne County Airport. JHVEPhoto/Getty Images On-time departure rate, January-June 2026: 75.80%Scheduled flights, June 2025-May 2026: 144,924Top carriers, June 2025-May 2026: Delta (54.32%), SkyWest (10.44%), Spirit (9.56%) 15. Charlotte Douglas International Airport At Charlotte Douglas International Airport, the airline with the biggest passenger carrier share by far is American. TrongNguyen/Getty Images On-time departure rate, January-June 2026: 75.57%Scheduled flights, June 2025-May 2026: 237,042Top carriers, June 2025-May 2026: American (67.78%), Delta (2.15%), Frontier (1.93%) 14. San Diego International Airport At San Diego International Airport, the airline with the biggest passenger carrier share is Southwest. Kevin Carter/Getty Images On-time departure rate, January-June 2026: 74.04%Scheduled flights, June 2025-May 2026: 104,990Top carriers, June 2025-May 2026: Southwest (35.48%), Alaska (13.50%), United (12.24%) 13. Austin-Bergstrom International Airport The South Terminal at Austin-Bergstrom International Airport. Jay Janner/The Austin American-Statesman via Getty Images On-time departure rate, January-June 2026: 73.52%Scheduled flights, June 2025-May 2026: 91,854Top carriers, June 2025-May 2026: Southwest (42.29%), Delta (15.73%), American (14.66%) 12. San Francisco International Airport A view of the welcome sign at San Francisco International Airport. Tayfun Coskun/Anadolu via Getty Images On-time departure rate, January-June 2026: 73.42%Scheduled flights, June 2025-May 2026: 149,754Top carriers, June 2025-May 2026: United (47.38%), Delta (10.62%), SkyWest (9.85%) 11. Harry Reid International Airport Harry Reid International Airport is located in Las Vegas. Justin Sullivan/Getty Images On-time departure rate, January-June 2026: 73.21%Scheduled flights, June 2025-May 2026: 181,954Top carriers, June 2025-May 2026: Southwest (44.34%), Delta (10.06%), United (8.98%) 10. Miami International Airport At Miami International Airport, the airline with the biggest passenger carrier share is American Airlines. AlexandreFagundes/Getty Images On-time departure rate, January-June 2026: 72.96%Scheduled flights, June 2025-May 2026: 115,040Top carriers, June 2025-May 2026: American (61.27%), Delta (11.87%), United (6.61%) 9. LaGuardia Airport LaGuardia is located in Queens, New York City. Al Drago/Getty Images On-time departure rate, January-June 2026: 72.09%Scheduled flights, June 2025-May 2026: 159,367Top carriers, June 2025-May 2026: Delta (25.19%), American (14.82%), Endeavor (10.27%) 8. Orlando International Airport Orlando International Airport ranks eighth-worst for on-time departures. Ancient Aftertone/Getty Images On-time departure rate, January-June 2026: 71.79%Scheduled flights, June 2025-May 2026: 169,849Top carriers, June 2025-May 2026: Southwest (26.49%), Delta (14.40%), Frontier (12.26%) 7. Chicago O'Hare International Airport Chicago O'Hare International is one of the world's busiest airports. Colin Thompson/Getty Images On-time departure rate, January-June 2026: 71.03%Scheduled flights, June 2025-May 2026: 384,095Top carriers, June 2025-May 2026: United (38.55%), American (22.70%), SkyWest (9.88%) 6. Baltimore/Washington International Thurgood Marshall Airport At Baltimore/Washington International Thurgood Marshall Airport, the airline with the biggest passenger carrier share is Southwest. Anna Moneymaker/Getty Images On-time departure rate, January-June 2026: 70.74%Scheduled flights, June 2025-May 2026: 96,660Top carriers, June 2025-May 2026: Southwest (73.15%), Delta (6.02%), Spirit (4.86%) 5. Nashville International Airport Nashville International Airport ranks fifth-worst for worst for on-time departures. Seth Herald/Getty Images On-time departure rate, January-June 2026: 69.97%Scheduled flights, June 2025-May 2026: 112,706Top carriers in June 2025*: Southwest (50.1%), American (14.8%), Delta (13.3%).*BTS does not have information on Nashville International's top carriers. Instead, this data has been collated from the airport's annual report, which shows average daily scheduled arrivals and departures for June 2025. 4. Ronald Reagan Washington National Airport Ronald Reagan Washington National Airport ranks fourth-worst for on-time departures. Kevin Carter/Getty Images On-time departure rate, January-June 2026: 69.87%Scheduled flights, June 2025-May 2026: 141,917Top carriers, June 2025-May 2026: American (27.59%), Southwest (14.03%), Delta (9.59%) 3. Chicago Midway International Airport By far the largest carrier by passenger share at Chicago Midway is Southwest. Joe Hendrickson/Getty Images On-time departure rate, January-June 2026: 69.30%Scheduled flights, June 2025-May 2026: 74,133Top carriers, June 2025-May 2026: Southwest (93.52%), Frontier (3.11%), Delta (1.58%) 2. Dallas Fort Worth International Airport The largest carrier at Dallas-Fort Worth is American Airlines. kameraworld/Getty Images On-time departure rate, January-June 2026: 68.22%Scheduled flights, June 2025-May 2026: 315,953Top carriers, June 2025-May 2026: American (66.69%), Envoy Air (10.79%), Frontier (4.64%) 1. Fort Lauderdale-Hollywood International Airport Fort Lauderdale-Hollywood International Airport had the lowest on-time departure rate. felixmizioznikov/Getty Images On-time departure rate, January-June 2026: 66.39%Scheduled flights, June 2025-May 2026: 91,994Top carriers, June 2025-May 2026: Spirit (23.13%), JetBlue (21.61%), Delta (15.53%)