JetBlue SEA to BOS on-time performance
JetBlue nonstop flights from Seattle to Boston · Aug 2025 – Jul 2026
On-time arrivals
53%
arrived < 15 min late
Cancelled
1.6%
4 flights
Avg arrival delay
42 min
87 min when late
Rank on route
#3 of 3
route average 75% on time
Key facts
- JetBlue flights on SEA to BOS arrived on time 53% of the time in Aug 2025 – Jul 2026.
- 1.6% were cancelled, and 20% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (44%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)44%
- Air traffic control & airport congestion28%
- Late-arriving aircraft28%
- Security0%
- Extreme weather0%
Other airlines on SEA to BOS
- Alaska Airlines75% on time · 13 min avg delay
- Delta Air Lines80% on time · 15 min avg delay
Full SEA to BOS comparison →
JetBlue on-time record across all routes →
247 JetBlue flights tracked on this route; 4 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.