LAS (Las Vegas) to BUF (Buffalo) flights arrive on time 76% of the time. The most reliable airline on this route is Southwest Airlines at 76%. The average delay is 55 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated May 2026.LAS → BUF
LAS (Las Vegas) to BUF (Buffalo)
LAS → BUF on-time performance by month
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This route is on time most of the time. About 76% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Accurate?
Good to know
Departing from LAS
77% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. LAS has long runway queues.
TSA is currently ~15 min. Best time: 4 AM (about 5 min).
Arriving at BUF
79% on timeWhen flights into BUF are late, the average delay is 71 minutes. Build buffer if you have ground plans.
If connecting at BUF: TSA is ~12 min right now. Allow at least 60 minutes for a domestic connection.
BUF has a 2.7% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
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Data last updated May 2026. Source: Bureau of Transportation Statistics.