Detroit (DTW) to Buffalo (BUF) flights
SkyWest Airlines, Delta Air Lines fly nonstop from Detroit Metropolitan Wayne County Airport to Buffalo Niagara International Airport, with about 34 flights a week in July 2026. The 241-mile flight takes about 1h 10m gate to gate.
- Distance
- 241 mi · 388 km
- Flight time
- 1h 10m
- Airlines
- 2
- Seats filled
- 78%
Airlines flying DTW to BUF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 27 | Bombardier CRJ900, Bombardier CRJ700, Bombardier CRJ550 | 44,174 | 1h 10m |
| Delta Air Lines | 7 | Airbus A319, Boeing 717-200, Airbus A320-100/200 | 41,764 | 1h 7m |
| Endeavor AirSeasonal or ended | n/a | Bombardier CRJ900, Bombardier CRJ700 | 19,236 | 1h 12m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DTW to BUF flight schedule
5 flight numbers flew this route in August 2026, 5 of them almost daily. The first usually leaves at 7:00am and the last at 10:50pm. 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) |
|---|---|---|---|---|
| DL 3639Delta Air Lines · operated by SkyWest Airlines | 7:00am | 8:15am | 31 | 93% |
| DL 3636Delta Air Lines · operated by SkyWest Airlines | 10:10am | 11:22am | 31 | 84% |
| DL 3642Delta Air Lines · operated by SkyWest Airlines | 2:00pm | 3:14pm | 31 | 79% |
| DL 5232Delta Air Lines · operated by Endeavor Air | 5:50pm | 7:08pm | 24 | 48% |
| DL 978Delta Air Lines | 10:50pm | 11:58pm | 31 | 72% |
Is DTW to BUF on time?
From September 2025 to August 2026, 79% of 1,538 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 7am were the most punctual (89%), those around 10pm the least (60%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (64%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,538 | 79% | 20 min | 1.6% |
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 |
|---|---|---|---|
| 7am to 8am | 225 | 89% | |
| 8am to 9am | 60 | 75% | |
| 10am to 11am | 319 | 78% | |
| 11am to 12pm | 41 | 78% | |
| 2pm to 3pm | 181 | 86% | |
| 3pm to 4pm | 120 | 69% | |
| 4pm to 5pm | 51 | 78% | |
| 5pm to 6pm | 178 | 73% | |
| 9pm to 10pm | 244 | 85% | |
| 10pm to 11pm | 119 | 60% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 143 | 10,507 | |
| September 2025 | 137 | 9,650 | |
| October 2025 | 148 | 10,046 | |
| November 2025 | 110 | 7,035 | |
| December 2025 | 106 | 7,325 | |
| January 2026 | 88 | 6,047 | |
| February 2026 | 96 | 6,664 | |
| March 2026 | 117 | 8,073 | |
| April 2026 | 130 | 8,784 | |
| May 2026 | 149 | 10,347 | |
| June 2026 | 144 | 10,169 | |
| July 2026 | 149 | 10,909 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.