LAS (Las Vegas) to SFO (San Francisco) flights arrive on time 70% of the time. The most reliable airline on this route is United Airlines at 75%. The average delay is 60 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated July 2026.LAS → SFO
LAS (Las Vegas) to SFO (San Francisco)
LAS → SFO on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is delayed fairly often. About 70% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
United Airlines edges out Southwest Airlines on this route — 75% vs 62% on time.
Airline Comparison
United Airlines leads at 75% on time; Southwest Airlines trails at 62%.
Accurate?
Good to know
Departing from LAS
80% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. LAS has long runway queues.
TSA is currently ~12 min. Best time: 4 AM (about 5 min).
Arriving at SFO
78% on timeWhen flights into SFO are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at SFO: TSA is ~21 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what United Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of LAS? We'll brief you.
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Data last updated July 2026. Source: Bureau of Transportation Statistics.