Which departure time was most reliable for DCA to BUF?
Among qualifying DCA-to-BUF departure window results, Evening had the highest on-time rate: 82.9% of 41 flights. Night was lowest at 44.5% across 308 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Late morning | 364 | 72.8% | 17.3% | 2.5% |
| Afternoon | 449 | 61.9% | 25.4% | 4.0% |
| Evening | 41 | 82.9% | 7.3% | 7.3% |
| Night | 308 | 44.5% | 29.2% | 9.7% |
Which weekday was most reliable for DCA to BUF?
Among qualifying DCA-to-BUF weekday results, Saturday had the highest on-time rate: 70.3% of 148 flights. Friday was lowest at 52.4% across 168 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 169 | 65.1% | 23.1% | 7.7% |
| Tuesday | 173 | 59.0% | 24.9% | 4.6% |
| Wednesday | 168 | 66.7% | 16.7% | 6.0% |
| Thursday | 166 | 59.0% | 21.7% | 4.2% |
| Friday | 168 | 52.4% | 30.4% | 4.2% |
| Saturday | 148 | 70.3% | 17.6% | 3.4% |
| Sunday | 170 | 58.8% | 27.6% | 5.9% |
Which airline was most reliable for DCA to BUF?
Among qualifying DCA-to-BUF airline results, Envoy Air had the highest on-time rate: 62.2% of 164 flights. Republic Airways was lowest at 60.5% across 263 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| PSA Airlines | 729 | 61.5% | 24.6% | 4.8% |
| Republic Airways | 263 | 60.5% | 20.2% | 5.7% |
| Envoy Air | 164 | 62.2% | 22.6% | 6.1% |
| American Airlines | 6 | 83.3% | 16.7% | 0.0% |
Which month was most reliable for DCA to BUF?
Among qualifying DCA-to-BUF month results, September 2025 had the highest on-time rate: 81.0% of 116 flights. February 2026 was lowest at 49.4% across 81 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 119 | 55.5% | 22.7% | 11.8% |
| August 2025 | 119 | 70.6% | 16.0% | 1.7% |
| September 2025 | 116 | 81.0% | 13.8% | 0.0% |
| October 2025 | 96 | 75.0% | 13.5% | 1.0% |
| November 2025 | 88 | 54.5% | 28.4% | 4.5% |
| December 2025 | 89 | 53.9% | 27.0% | 6.7% |
| January 2026 | 93 | 49.5% | 26.9% | 12.9% |
| February 2026 | 81 | 49.4% | 37.0% | 2.5% |
| March 2026 | 89 | 52.8% | 32.6% | 4.5% |
| April 2026 | 89 | 71.9% | 15.7% | 2.2% |
| May 2026 | 93 | 61.3% | 23.7% | 2.2% |
| June 2026 | 90 | 53.3% | 28.9% | 12.2% |
What drove DCA to BUF delay minutes?
Late aircraft was the largest recorded DCA-to-BUF delay category, accounting for 56.4% of 28,932 BTS-attributed delay minutes during July 2025–June 2026.
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