Airports › Atlanta (ATL) › May 2026
Airport month · May 2026
Hartsfield-Jackson Atlanta International in May 2026
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In May 2026, reporting carriers scheduled 27,535 domestic departures from Hartsfield-Jackson Atlanta International (ATL). 76.9% left less than 15 minutes late and 76.1% reached their destination on time; 1.2% were cancelled.
Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so ATL departures were level with the national departure figure.
A year earlier, in May 2025, the airport had 27,275 departures with 72.5% leaving on time: a change of +4.4 points, with flights up 1%.
Flights arriving at ATL that month were on time 79.8% of the time (27,532 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 31% and national aviation system 22%.
- On time 76.1%
- Arrived 15+ minutes late 22.5%
- Cancelled 1.2%
- Diverted 0.3%
May 2026 against a year earlier, the airport's year and the nation
| Measure | May 2026 | May 2025 | ATL, 12 months to Jul 2026 | All reported flights, May 2026 |
|---|---|---|---|---|
| Departed on time | 76.9% | 72.5% | 77.1% | 77.1% |
| Arrived on time | 76.1% | 70.4% | 76.6% | 77.6% |
| Cancelled | 1.2% | 0.3% | 1.8% | 0.9% |
| Average departure delay (late minutes only) | 14.6 min | 19.0 min | 15.1 min | 16.0 min |
| Scheduled departures a day | 918 | 909 | 865 | 20,391 |
| Scheduled departures | 27,535 | 27,275 | 315,859 | 611,735 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| DL Delta Air Lines | 21,328 | 77% | 77.8% | 5.2 min | 1.3% |
| F9 Frontier Airlines | 2,018 | 7% | 66.6% | 18.7 min | 0.6% |
| WN Southwest Airlines | 1,330 | 5% | 65.9% | 16.5 min | 0.4% |
| UA United Airlines | 690 | 3% | 80.0% | 7.0 min | 0.6% |
| AA American Airlines | 646 | 2% | 70.3% | 21.7 min | 2.0% |
| OO SkyWest Airlines | 521 | 2% | 65.5% | 29.9 min | 1.3% |
| OH PSA Airlines | 294 | 1% | 82.7% | 10.1 min | 0.7% |
| YX Republic Airline | 294 | 1% | 77.9% | 6.6 min | 1.7% |
| B6 JetBlue Airways | 232 | 1% | 72.0% | 19.2 min | 0.0% |
| AS Alaska Airlines | 109 | 0% | 83.5% | -4.8 min | 0.0% |
| MQ Envoy Air | 54 | 0% | 75.9% | 2.7 min | 1.9% |
| NK Spirit Airlines | 19 | 0% | 63.2% | 35.7 min | 10.5% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| ATL–MCO | Atlanta to Orlando | 722 | 71.5% | 14.4 min | 0.4% |
| ATL–LGA | Atlanta to New York | 677 | 71.2% | 14.8 min | 1.5% |
| ATL–ORD | Atlanta to Chicago | 596 | 71.5% | 13.1 min | 1.2% |
| ATL–DCA | Atlanta to Washington | 574 | 69.5% | 15.2 min | 2.1% |
| ATL–TPA | Atlanta to Tampa | 565 | 67.8% | 16.3 min | 0.4% |
| ATL–DFW | Atlanta to Dallas/Fort Worth | 563 | 67.5% | 20.8 min | 3.4% |
| ATL–FLL | Atlanta to Fort Lauderdale | 563 | 73.0% | 11.9 min | 1.8% |
| ATL–MIA | Atlanta to Miami | 552 | 69.0% | 16.6 min | 0.5% |
| ATL–PHL | Atlanta to Philadelphia | 520 | 78.1% | 13.8 min | 1.0% |
| ATL–EWR | Atlanta to Newark | 519 | 81.5% | 2.9 min | 1.2% |
| ATL–BWI | Atlanta to Baltimore | 486 | 75.1% | 10.2 min | 0.6% |
| ATL–DEN | Atlanta to Denver | 483 | 77.0% | 3.8 min | 0.8% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left ATL on time in May 2026?
76.9% of 27,535 scheduled domestic departures left less than 15 minutes late, and 76.1% reached their destination on time. The national figures that month were 77.1% and 77.6%.
How does that compare with a year earlier?
In May 2025, 72.5% of 27,275 departures left on time and 0.3% were cancelled, against 76.9% and 1.2% in May 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ATL · methodology · corrections.