Is BOS–SJC running on time right now?
Significant delay risk. The departure side at BOS is the weaker end, route health score 42/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Boston (BOS) to San Jose (SJC) run nonstop between the two airports. The nonstop covers 4,317 km, an estimated 6 hours 2 minutes in the air.
BOS
Boston
disrupted · +61
SJC
San Jose
busy · +26
4,317 km · ~6h 02m est.
Disrupted · 0 airlines · nonstop
42 / 100
route health from live BOS and SJC delay boards
Flight time~6h 02mestimated from route distance
Airports right now
live boardsWeather lens
Current conditions put the pressure at BOS: 52% odds of a 15+ minute delay and around +19 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Boston to San Jose route actually runs
Pro Flight Search records official board updates for nonstop BOS to SJC flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Boston (BOS) to San Jose (SJC) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-SJC
BOS to SJC questions
How long is the flight from BOS to SJC?
Great-circle distance is 4,317 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 335–400 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at BOS and arrival-side delay at SJC, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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