Alaska Airlines LAX to SEA on-time performance
Alaska Airlines nonstop flights from Los Angeles to Seattle · Aug 2025 – Jul 2026
On-time arrivals
85%
arrived < 15 min late
Cancelled
0.9%
30 flights
Avg arrival delay
8 min
50 min when late
Rank on route
#3 of 6
route average 85% on time
Key facts
- Alaska Airlines flights on LAX to SEA arrived on time 85% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 4% arrived an hour or more late.
- That ranks #3 of 6 airlines on this route, which averaged 85% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)38%
- Late-arriving aircraft37%
- Air traffic control & airport congestion23%
- Extreme weather2%
- Security0%
Other airlines on LAX to SEA
- Delta Air Lines86% on time · 11 min avg delay
- SkyWest Airlines84% on time · 14 min avg delay
- United Airlines87% on time · 6 min avg delay
- Frontier Airlines82% on time · 15 min avg delay
- American Airlines73% on time · 40 min avg delay
Full LAX to SEA comparison →
Alaska Airlines on-time record across all routes →
3,287 Alaska Airlines flights tracked on this route; 30 cancelled, 2 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.