SMF (Sacramento) to SFO (San Francisco) flights arrive on time 75% of the time. The most reliable airline on this route is United Airlines at 100%. The average delay is 80 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.SMF → SFO
SMF (Sacramento) to SFO (San Francisco)
SMF → SFO on-time performance by month
24
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is delayed fairly often. About 75% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
United Airlines is significantly more reliable on this route at 100% on time vs SkyWest Airlines at 75%.
Airline Comparison
United Airlines leads at 100% on time; SkyWest Airlines trails at 75%.
Accurate?
Good to know
Departing from SMF
83% on timeTSA is currently ~5 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 ~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 SMF? 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 August 2026. Source: Bureau of Transportation Statistics.