Flights Las Vegas → Buffalo
LAS → BUF
How long is the flight from Las Vegas to Buffalo?
The flight from Las Vegas (LAS) to Buffalo (BUF) takes about 4h 24m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
Route overview
The flight route from Las Vegas to Buffalo is operated with a Boeing 737-800 aircraft and has an on-time performance rate of 57%. Over the period in question, there were 83 flights with an average delay of 15 minutes. The destination airport sees approximately 4.6 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Las Vegas (LAS) → Buffalo (BUF) route is operated by Southwest Airlines. Across 145 flights monitored in recent months, 59% arrived on time (within 15 min of schedule), with an average delay of 18 minutes. The cancellation rate is 1.38%. FlightGuard's average computed risk is 15/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Buffalo the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Las Vegas the average ATFM delay is 5.5 minutes.
Heading to Buffalo: what to expect in this direction
Flying from Las Vegas (LAS) to Buffalo (BUF) heads north-east for about 3,189 km, a flight time of roughly 4h 24m.
Departures from Las Vegas on this leg cluster in the overnight window: about 63% of LAS-BUF flights take off then.
Air-traffic congestion: departing Las Vegas the average ATFM delay is 5.5 min (atfm); arriving into Buffalo it is 5.5 min (atfm).
Across 145 tracked LAS-BUF flights, 59% left on time with an average delay of 18 min and a 1.4% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 75% | 5 min | 0.3% |
Airlines operating LAS-BUF
Airports
Frequently asked questions about LAS-BUF
The flight from Las Vegas (LAS) to Buffalo (BUF) takes about 4h 24m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
On the Las Vegas (LAS) -> Buffalo (BUF) route, on-time performance is 59% with an average delay of 18 minutes, based on 145 tracked flights.
The cancellation rate on Las Vegas-Buffalo is 1.38% across 145 monitored flights.
The route is operated by 1 airline: Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Buffalo, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
