Airports › Atlanta (ATL) › August 2025
Airport month · August 2025
Hartsfield-Jackson Atlanta International in August 2025
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 August 2025, reporting carriers scheduled 27,353 domestic departures from Hartsfield-Jackson Atlanta International (ATL). 77.3% left less than 15 minutes late and 77.5% reached their destination on time; 0.9% were cancelled.
Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so ATL departures were 0.5 points above the national departure figure.
A year earlier, in August 2024, the airport had 29,480 departures with 78.7% leaving on time: a change of −1.4 points, with flights down 7%.
Flights arriving at ATL that month were on time 81.7% of the time (27,360 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 30% and national aviation system 19%.
- On time 77.5%
- Arrived 15+ minutes late 21.4%
- Cancelled 0.9%
- Diverted 0.3%
August 2025 against a year earlier, the airport's year and the nation
| Measure | Aug 2025 | Aug 2024 | ATL, 12 months to Jul 2026 | All reported flights, Aug 2025 |
|---|---|---|---|---|
| Departed on time | 77.3% | 78.7% | 77.1% | 76.8% |
| Arrived on time | 77.5% | 78.6% | 76.6% | 76.3% |
| Cancelled | 0.9% | 1.0% | 1.8% | 1.1% |
| Average departure delay (late minutes only) | 15.6 min | 14.6 min | 15.1 min | 17.6 min |
| Scheduled departures a day | 912 | 983 | 865 | 20,079 |
| Scheduled departures | 27,353 | 29,480 | 315,859 | 602,378 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| DL Delta Air Lines | 20,844 | 76% | 79.3% | 5.1 min | 0.7% |
| WN Southwest Airlines | 1,627 | 6% | 75.7% | 9.5 min | 0.4% |
| F9 Frontier Airlines | 1,461 | 5% | 59.7% | 26.0 min | 2.5% |
| OO SkyWest Airlines | 762 | 3% | 73.5% | 22.5 min | 0.1% |
| NK Spirit Airlines | 627 | 2% | 76.6% | 8.1 min | 0.2% |
| UA United Airlines | 623 | 2% | 78.2% | 7.3 min | 1.1% |
| AA American Airlines | 608 | 2% | 69.7% | 23.9 min | 2.1% |
| OH PSA Airlines | 278 | 1% | 73.4% | 22.9 min | 2.5% |
| B6 JetBlue Airways | 160 | 1% | 76.3% | 5.7 min | 0.6% |
| AS Alaska Airlines | 152 | 1% | 71.1% | 9.3 min | 0.7% |
| YX Republic Airline | 135 | 0% | 77.0% | 5.4 min | 3.0% |
| MQ Envoy Air | 76 | 0% | 82.9% | -0.7 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| ATL–MCO | Atlanta to Orlando | 634 | 64.0% | 24.8 min | 0.2% |
| ATL–LGA | Atlanta to New York | 607 | 77.1% | 5.7 min | 1.3% |
| ATL–DCA | Atlanta to Washington | 583 | 72.2% | 11.0 min | 1.5% |
| ATL–ORD | Atlanta to Chicago | 573 | 76.6% | 9.6 min | 1.7% |
| ATL–DFW | Atlanta to Dallas/Fort Worth | 552 | 70.8% | 24.7 min | 2.0% |
| ATL–EWR | Atlanta to Newark | 537 | 70.6% | 14.1 min | 1.5% |
| ATL–PHL | Atlanta to Philadelphia | 506 | 73.1% | 7.0 min | 2.2% |
| ATL–MIA | Atlanta to Miami | 498 | 66.9% | 18.8 min | 0.8% |
| ATL–DEN | Atlanta to Denver | 495 | 70.3% | 13.1 min | 0.8% |
| ATL–FLL | Atlanta to Fort Lauderdale | 495 | 71.1% | 10.0 min | 0.2% |
| ATL–BWI | Atlanta to Baltimore | 493 | 73.0% | 12.1 min | 1.6% |
| ATL–LAX | Atlanta to Los Angeles | 482 | 77.8% | 6.6 min | 0.8% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left ATL on time in August 2025?
77.3% of 27,353 scheduled domestic departures left less than 15 minutes late, and 77.5% reached their destination on time. The national figures that month were 76.8% and 76.3%.
How does that compare with a year earlier?
In August 2024, 78.7% of 29,480 departures left on time and 1.0% were cancelled, against 77.3% and 0.9% in August 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; 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.