JetBlue BOS to SEA on-time performance
JetBlue nonstop flights from Boston to Seattle · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
1.2%
3 flights
Avg arrival delay
16 min
71 min when late
Rank on route
#1 of 3
route average 72% on time
Key facts
- JetBlue flights on BOS to SEA arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 11% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 72% 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 congestion30%
- Airline (crew, maintenance, cleaning, fueling)27%
- Extreme weather1%
- Security1%
Other airlines on BOS to SEA
- Alaska Airlines71% on time · 16 min avg delay
- Delta Air Lines73% on time · 17 min avg delay
Full BOS to SEA comparison →
JetBlue on-time record across all routes →
247 JetBlue flights tracked on this route; 3 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.