JetBlue SFO to BOS on-time performance
JetBlue nonstop flights from San Francisco to Boston · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
2.4%
42 flights
Avg arrival delay
22 min
81 min when late
Rank on route
#3 of 5
route average 76% on time
Key facts
- JetBlue flights on SFO to BOS arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 2.4% were cancelled, and 11% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was late-arriving aircraft (40%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft40%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)25%
- Extreme weather1%
- Security0%
Other airlines on SFO to BOS
- United Airlines79% on time · 16 min avg delay
- Delta Air Lines73% on time · 20 min avg delay
- Alaska Airlines78% on time · 15 min avg delay
- Southwest Airlines0% on time · 49 min avg delay
Full SFO to BOS comparison →
JetBlue on-time record across all routes →
1,736 JetBlue flights tracked on this route; 42 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.