Washington (DCA) to Buffalo (BUF) flights
PSA Airlines, Envoy Air fly nonstop from Ronald Reagan Washington National Airport to Buffalo Niagara International Airport, with about 19 flights a week in July 2026. The 296-mile flight takes about 1h 24m gate to gate.
- Distance
- 296 mi · 476 km
- Flight time
- 1h 24m
- Airlines
- 2
- Seats filled
- 81%
Airlines flying DCA to BUF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| PSA Airlines | 12 | Bombardier CRJ700, Bombardier CRJ900 | 37,039 | 1h 23m |
| Envoy Air | 5 | Embraer E175 | 11,138 | 1h 24m |
| Republic AirlineSeasonal or ended | n/a | Embraer E175 | 13,411 | 1h 26m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DCA to BUF flight schedule
5 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 9:59am and the last at 10:11pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AA 4597American Airlines · operated by Republic Airline | 9:59am | 11:29am | 27 | 71% |
| AA 5106American Airlines · operated by PSA Airlines | 3:25pm | 4:55pm | 4 | 37% |
| AA 5075American Airlines · operated by PSA Airlines | 3:36pm | 5:08pm | 27 | 46% |
| AA 5268American Airlines · operated by PSA Airlines | 8:30pm | 9:56pm | 4 | n/a |
| AA 4452American Airlines · operated by Republic Airline | 10:11pm | 11:36pm | 23 | 47% |
Is DCA to BUF on time?
From September 2025 to August 2026, 63% of 1,108 flights arrived within 15 minutes of schedule and 5.6% were cancelled. Flights leaving around 9am were the most punctual (87%), those around 10pm the least (48%). Most delay time was caused by late-arriving aircraft (55%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,108 | 63% | 30 min | 5.6% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 9am to 10am | 72 | 87% | |
| 10am to 11am | 285 | 73% | |
| 12pm to 1pm | 35 | 89% | |
| 2pm to 3pm | 48 | 46% | |
| 3pm to 4pm | 307 | 60% | |
| 8pm to 9pm | 26 | 76% | |
| 10pm to 11pm | 308 | 48% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 117 | 7,049 | |
| September 2025 | 116 | 6,824 | |
| October 2025 | 95 | 5,734 | |
| November 2025 | 84 | 4,539 | |
| December 2025 | 83 | 4,719 | |
| January 2026 | 81 | 4,012 | |
| February 2026 | 79 | 4,047 | |
| March 2026 | 85 | 4,815 | |
| April 2026 | 87 | 4,696 | |
| May 2026 | 91 | 5,415 | |
| June 2026 | 80 | 4,975 | |
| July 2026 | 82 | 5,215 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.