BOI (Boise) to SMF (Sacramento) flights arrive on time 86% of the time. The most reliable airline on this route is Southwest Airlines at 87%. The average delay is 58 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.BOI → SMF
BOI (Boise) to SMF (Sacramento)
BOI → SMF on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is usually on time. About 86% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Southwest Airlines edges out SkyWest Airlines on this route — 87% vs 80% on time.
Airline Comparison
Southwest Airlines leads at 87% on time; SkyWest Airlines trails at 80%.
Accurate?
Good to know
Departing from BOI
83% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. BOI has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at SMF
83% on timeWhen flights into SMF are late, the average delay is 59 minutes. Build buffer if you have ground plans.
If connecting at SMF: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of BOI? 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.