Alaska Airlines JFK to SEA on-time performance
Alaska Airlines nonstop flights from New York to Seattle · Aug 2025 – Jul 2026
On-time arrivals
68%
arrived < 15 min late
Cancelled
3.2%
45 flights
Avg arrival delay
22 min
64 min when late
Rank on route
#3 of 3
route average 70% on time
Key facts
- Alaska Airlines flights on JFK to SEA arrived on time 68% of the time in Aug 2025 – Jul 2026.
- 3.2% were cancelled, and 10% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 70% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (37%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion37%
- Late-arriving aircraft26%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather9%
- Security2%
Other airlines on JFK to SEA
- Delta Air Lines73% on time · 17 min avg delay
- JetBlue70% on time · 23 min avg delay
Full JFK to SEA comparison →
Alaska Airlines on-time record across all routes →
1,402 Alaska Airlines flights tracked on this route; 45 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.