ATL · Hartsfield Jackson Atlanta International Airport
Atlanta, GA. All airports.
Share of flights 15+ min late, by month
departures
arrivals
usual for the month (departures)
Jan 2015 → Jul 2026; gridlines 10/20/30/40%
Recent months — departures
| Month | Flights | Late 15+ | vs usual | Cancelled | Avg min | Main cause |
|---|---|---|---|---|---|---|
| Jul 2026 | 28,068 | 33.5% | +2.9 | 2.4% | 27 | Airline |
| Jun 2026 | 26,961 | 20.6% | -4.9 | 1.4% | 15 | Airline |
| May 2026 | 27,535 | 22.2% | +1.8 | 1.2% | 15 | Airline |
| Apr 2026 | 26,607 | 17.0% | -4.4 | 1.0% | 11 | Airline |
| Mar 2026 | 26,669 | 25.0% | +3.4 | 3.5% | 19 | Airline |
| Feb 2026 | 23,024 | 18.3% | +4.2 | 1.5% | 12 | Airline |
| Jan 2026 | 24,595 | 21.1% | +0.3 | 5.0% | 14 | Airline |
| Dec 2025 | 25,764 | 27.6% | +9.2 | 2.4% | 20 | Airline |
| Nov 2025 | 25,888 | 19.4% | +7.5 | 2.5% | 14 | Airline |
| Oct 2025 | 27,556 | 17.6% | +3.4 | 0.2% | 11 | Airline |
| Sep 2025 | 25,839 | 13.3% | -0.4 | 0.1% | 8 | Airline |
| Aug 2025 | 27,353 | 22.0% | +1.5 | 0.9% | 16 | Airline |
| Jul 2025 | 28,551 | 31.0% | +4.1 | 1.6% | 24 | Airline |
| Jun 2025 | 27,728 | 35.1% | +10.2 | 2.5% | 27 | Airline |
| May 2025 | 27,275 | 27.2% | +7.7 | 0.3% | 19 | Airline |
| Apr 2025 | 25,490 | 21.6% | +3.4 | 0.9% | 16 | Airline |
| Mar 2025 | 26,468 | 21.7% | +2.7 | 0.7% | 15 | Airline |
| Feb 2025 | 22,640 | 22.3% | +8.2 | 0.3% | 15 | Airline |
| Jan 2025 | 23,881 | 22.4% | +6.5 | 5.2% | 17 | Airline |
| Dec 2024 | 29,014 | 22.7% | +6.3 | 0.2% | 15 | Airline |
| Nov 2024 | 28,015 | 13.4% | +1.5 | 0.1% | 8 | Airline |
| Oct 2024 | 29,837 | 11.8% | -2.4 | 0.9% | 7 | Airline |
| Sep 2024 | 28,247 | 15.6% | +1.9 | 0.8% | 11 | Airline |
| Aug 2024 | 29,480 | 20.5% | +0.8 | 1.0% | 15 | Airline |
Airlines here, Jul 2026 (departures)
| Airline | Flights | Late | Canc. |
|---|---|---|---|
| Envoy | 58 | 22.4% | 0.0% |
| United | 716 | 27.1% | 3.6% |
| Delta | 21,774 | 31.3% | 2.0% |
| SkyWest | 508 | 32.5% | 2.0% |
| Alaska | 115 | 33.6% | 1.7% |
| American | 706 | 39.2% | 2.0% |
| PSA | 311 | 39.2% | 9.0% |
| Republic | 246 | 39.3% | 11.0% |
| JetBlue | 306 | 42.2% | 10.1% |
| Southwest | 1,353 | 43.2% | 0.7% |
| Frontier | 1,975 | 49.8% | 5.1% |
Airlines with 30+ departures that month.
Worst days on record
| Date | Flights | Late | Canc. |
|---|---|---|---|
| 2025-01-10 | 764 | 93% | 84% |
| 2018-01-17 | 1047 | 91% | 35% |
| 2024-07-19 | 1038 | 86% | 48% |
| 2017-04-05 | 1069 | 83% | 50% |
| 2026-03-16 | 903 | 86% | 27% |
| 2019-06-08 | 952 | 85% | 14% |
| 2017-04-06 | 1090 | 79% | 39% |
| 2017-01-07 | 746 | 83% | 24% |
| 2024-07-20 | 890 | 76% | 38% |
| 2016-08-08 | 1162 | 77% | 30% |
| 2024-07-21 | 1036 | 73% | 38% |
| 2015-12-24 | 803 | 79% | 17% |
Departures; ranked by share late or cancelled.
FAA programs, last 90 days
None recorded.