SJC (San Jose) to BOI (Boise) flights arrive on time 86% of the time. The most reliable airline on this route is Southwest Airlines at 86%. The average delay is 52 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.SJC → BOI
SJC (San Jose) to BOI (Boise)
SJC → BOI on-time performance by month
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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?
Airlines are roughly equal on this route — Southwest Airlines leads slightly at 86% vs SkyWest Airlines at 85%.
Airline Comparison
Southwest Airlines leads at 86% on time; SkyWest Airlines trails at 85%.
Accurate?
Good to know
Departing from SJC
84% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at BOI
83% on timeWhen flights into BOI are late, the average delay is 63 minutes. Build buffer if you have ground plans.
If connecting at BOI: 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 SJC? 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.