Las Vegas (LAS) to Buffalo (BUF) flights
Southwest Airlines flies nonstop from Harry Reid International Airport to Buffalo Niagara International Airport, with about <1 flights a week in July 2026. The 1,986-mile flight takes about 4h 8m gate to gate.
- Distance
- 1,986 mi · 3,196 km
- Flight time
- 4h 8m
- Airlines
- 1
- Seats filled
- 83%
Airlines flying LAS to BUF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | <1 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 41,722 | 4h 8m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
LAS to BUF flight schedule
3 flight numbers flew this route in August 2026. The first usually leaves at 7:30am and the last at 6:10pm. 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 758Southwest Airlines | 7:30am | 2:50pm | 4 | n/a |
| WN 370Southwest Airlines | 8:35am | 3:55pm | 12 | 83% |
| WN 4445Southwest Airlines | 6:10pm | 1:30am | 4 | n/a |
Is LAS to BUF on time?
From September 2025 to August 2026, 71% of 291 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 8am were the most punctual (80%), those around 4pm the least (58%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (47%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 291 | 71% | 15 min | 0.7% |
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 |
|---|---|---|---|
| 8am to 9am | 68 | 80% | |
| 9am to 10am | 10 | 90% | |
| 10am to 11am | 40 | 75% | |
| 12pm to 1pm | 30 | 63% | |
| 2pm to 3pm | 37 | 67% | |
| 3pm to 4pm | 42 | 71% | |
| 4pm to 5pm | 43 | 58% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 34 | 4,539 | |
| September 2025 | 30 | 4,127 | |
| October 2025 | 31 | 4,764 | |
| November 2025 | 28 | 3,514 | |
| December 2025 | 29 | 3,613 | |
| January 2026 | 26 | 3,587 | |
| February 2026 | 26 | 3,419 | |
| March 2026 | 27 | 3,901 | |
| April 2026 | 29 | 4,292 | |
| May 2026 | 31 | 4,731 | |
| June 2026 | 7 | 992 | |
| July 2026 | 5 | 667 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.