SFO (San Francisco) to LAS (Las Vegas) flights arrive on time 73% of the time. The most reliable airline on this route is United Airlines at 80%. The average delay is 66 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.SFO → LAS
SFO (San Francisco) to LAS (Las Vegas)
SFO → LAS on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is delayed fairly often. About 73% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines is significantly more reliable on this route at 80% on time vs Frontier Airlines at 63%.
Airline Comparison
United Airlines leads at 80% on time; Frontier Airlines trails at 63%.
Accurate?
Good to know
Departing from SFO
76% on timeExpect ~21 min sitting on the taxiway after your gate pushes back. SFO has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at LAS
78% on timeWhen flights into LAS are late, the average delay is 64 minutes. Build buffer if you have ground plans.
If connecting at LAS: TSA is ~5 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 SFO? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated October 2026. Source: Bureau of Transportation Statistics.