BOS to SJC flight delays & on-time performance
Nonstop flights from Boston Logan International Airport to Mineta San Jose International Airport · 2,689 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOS or SJC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Boston (BOS) to San Jose (SJC) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0% were cancelled, and 17% arrived an hour or more late.
- The largest source of delay minutes was air traffic control & airport congestion (100%).
Which airline is most on time from BOS to SJC?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 100% | 0.0% | 6 min | 0.0% | 2 |
| United Airlines | 100% | 0.0% | 0 min | 0.0% | 1 |
| American Airlines | 67% | 0.0% | 23 min | 33.3% | 3 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Thursday100%0.0% cancelled
- Friday100%0.0% cancelled
- Saturday50%0.0% cancelled
On-time trend by month
Monthly trend appears once two or more months of data are available.
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Late-arriving aircraft0%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
BOS to SJC: common questions
- How often are BOS to SJC flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Boston to San Jose cancelled?
- 0.0% of scheduled flights were cancelled (0 of 6).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 70 min behind schedule on average, and 16.7% of flights were an hour or more late.
- How long is taxi time at BOS?
- Flights on this route spent 28 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SJC to BOS — 80% on time
More flights from Boston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOS → SJC, nonstop flights by US airlines that report to the DOT. How we calculate this.