JetBlue SJU to BOS on-time performance
JetBlue nonstop flights from San Juan to Boston · Aug 2025 – Jul 2026
On-time arrivals
69%
arrived < 15 min late
Cancelled
3.5%
48 flights
Avg arrival delay
25 min
76 min when late
Rank on route
#4 of 4
route average 71% on time
Key facts
- JetBlue flights on SJU to BOS arrived on time 69% of the time in Aug 2025 – Jul 2026.
- 3.5% were cancelled, and 13% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 71% on time overall.
- The largest source of delay minutes was late-arriving aircraft (53%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft53%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion17%
- Extreme weather2%
- Security0%
Other airlines on SJU to BOS
- Delta Air Lines77% on time · 16 min avg delay
- Spirit Airlines73% on time · 16 min avg delay
- Frontier Airlines70% on time · 15 min avg delay
Full SJU to BOS comparison →
JetBlue on-time record across all routes →
1,384 JetBlue flights tracked on this route; 48 cancelled, 3 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.