BOS (Boston) to SJC (San Jose) flights arrive on time 56% of the time. The most reliable airline on this route is JetBlue Airways at 56%. The average delay is 71 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated October 2026.BOS → SJC
BOS (Boston) to SJC (San Jose)
BOS → SJC on-time performance by month
23
24
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is frequently delayed. About 56% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Accurate?
Good to know
Departing from BOS
77% on timeExpect ~20 min sitting on the taxiway after your gate pushes back. BOS has long runway queues.
TSA is currently ~33 min. Best time: 4 AM (about 5 min).
Arriving at SJC
83% on timeWhen flights into SJC are late, the average delay is 55 minutes. Build buffer if you have ground plans.
If connecting at SJC: TSA is ~23 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what JetBlue Airways owes you — refund rights, action plan, complaint email. Free.
Flying out of BOS? 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.