Which departure time was most reliable for ATL to BWI?
Among qualifying ATL-to-BWI departure window results, Early morning had the highest on-time rate: 90.0% of 966 flights. Night was lowest at 62.0% across 800 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 966 | 90.0% | 5.3% | 1.7% |
| Late morning | 883 | 82.6% | 8.8% | 1.9% |
| Afternoon | 1,710 | 72.2% | 15.8% | 1.7% |
| Evening | 1,055 | 64.1% | 23.9% | 2.4% |
| Night | 800 | 62.0% | 24.0% | 2.5% |
Which weekday was most reliable for ATL to BWI?
Among qualifying ATL-to-BWI weekday results, Wednesday had the highest on-time rate: 82.5% of 743 flights. Sunday was lowest at 65.7% across 827 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 815 | 70.6% | 18.3% | 2.0% |
| Tuesday | 760 | 77.2% | 14.9% | 0.7% |
| Wednesday | 743 | 82.5% | 9.8% | 1.1% |
| Thursday | 803 | 75.5% | 13.2% | 1.5% |
| Friday | 817 | 74.4% | 16.5% | 1.5% |
| Saturday | 649 | 72.7% | 16.2% | 3.2% |
| Sunday | 827 | 65.7% | 19.6% | 4.0% |
Which airline was most reliable for ATL to BWI?
Among qualifying ATL-to-BWI airline results, Southwest Airlines had the highest on-time rate: 76.9% of 1,569 flights. Frontier Airlines was lowest at 59.8% across 883 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 2,824 | 76.6% | 13.2% | 1.9% |
| Southwest Airlines | 1,569 | 76.9% | 13.2% | 2.1% |
| Frontier Airlines | 883 | 59.8% | 27.5% | 1.9% |
| Spirit Airlines | 138 | 76.1% | 13.8% | 1.4% |
Which month was most reliable for ATL to BWI?
Among qualifying ATL-to-BWI month results, September 2025 had the highest on-time rate: 87.5% of 465 flights. July 2025 was lowest at 58.1% across 508 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 508 | 58.1% | 27.0% | 3.9% |
| August 2025 | 493 | 73.0% | 19.1% | 1.6% |
| September 2025 | 465 | 87.5% | 6.7% | 0.0% |
| October 2025 | 501 | 80.4% | 11.0% | 0.2% |
| November 2025 | 469 | 78.3% | 13.9% | 1.7% |
| December 2025 | 433 | 67.4% | 20.3% | 2.5% |
| January 2026 | 379 | 72.0% | 14.5% | 6.3% |
| February 2026 | 346 | 74.9% | 12.4% | 1.7% |
| March 2026 | 414 | 66.7% | 18.1% | 3.9% |
| April 2026 | 440 | 81.6% | 11.4% | 0.7% |
| May 2026 | 486 | 75.1% | 15.0% | 0.6% |
| June 2026 | 480 | 72.5% | 16.0% | 1.5% |
What drove ATL to BWI delay minutes?
Airline was the largest recorded ATL-to-BWI delay category, accounting for 39.5% of 80,836 BTS-attributed delay minutes during July 2025–June 2026.
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