Alaska Airlines SEA to KOA on-time performance
Alaska Airlines nonstop flights from Seattle to Kona · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
0.9%
10 flights
Avg arrival delay
15 min
50 min when late
Rank on route
#2 of 2
route average 74% on time
Key facts
- Alaska Airlines flights on SEA to KOA arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 7% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (40%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)40%
- Late-arriving aircraft30%
- Air traffic control & airport congestion28%
- Extreme weather3%
- Security0%
Other airlines on SEA to KOA
- Delta Air Lines78% on time · 12 min avg delay
Full SEA to KOA comparison →
Alaska Airlines on-time record across all routes →
1,056 Alaska Airlines flights tracked on this route; 10 cancelled, 12 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.