Nashville (BNA) to Buffalo (BUF) flights
Southwest Airlines flies nonstop from Nashville International Airport to Buffalo Niagara International Airport, with about 7 flights a week in July 2026. The 633-mile flight takes about 1h 43m gate to gate.
- Distance
- 633 mi · 1,019 km
- Flight time
- 1h 43m
- Airlines
- 1
- Seats filled
- 82%
Airlines flying BNA to BUF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 7 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 47,825 | 1h 43m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BNA to BUF flight schedule
3 flight numbers flew this route in August 2026. The first usually leaves at 12:35pm and the last at 2:00pm. 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) |
|---|---|---|---|---|
| WN 3413Southwest Airlines | 12:35pm | 3:25pm | 12 | 50% |
| WN 2484Southwest Airlines | 1:10pm | 4:00pm | 4 | n/a |
| WN 3986Southwest Airlines | 2:00pm | 4:50pm | 12 | 83% |
Is BNA to BUF on time?
From September 2025 to August 2026, 73% of 371 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 10am were the most punctual (91%), those around 1pm the least (63%). Most delay time was caused by late-arriving aircraft (50%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 371 | 73% | 15 min | 0.8% |
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 |
|---|---|---|---|
| 10am to 11am | 55 | 91% | |
| 11am to 12pm | 81 | 74% | |
| 12pm to 1pm | 47 | 85% | |
| 1pm to 2pm | 59 | 63% | |
| 2pm to 3pm | 59 | 71% | |
| 3pm to 4pm | 48 | 65% | |
| 4pm to 5pm | 15 | 53% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 4,671 | |
| September 2025 | 30 | 4,206 | |
| October 2025 | 31 | 4,180 | |
| November 2025 | 32 | 3,673 | |
| December 2025 | 31 | 3,813 | |
| January 2026 | 30 | 2,723 | |
| February 2026 | 28 | 2,799 | |
| March 2026 | 32 | 4,026 | |
| April 2026 | 30 | 3,892 | |
| May 2026 | 31 | 4,182 | |
| June 2026 | 30 | 4,571 | |
| July 2026 | 32 | 5,162 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.