Frontier Airlines SEA to LAX on-time performance
Frontier Airlines nonstop flights from Seattle to Los Angeles · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
3.1%
9 flights
Avg arrival delay
13 min
59 min when late
Rank on route
#6 of 6
route average 83% on time
Key facts
- Frontier Airlines flights on SEA to LAX arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 3.1% were cancelled, and 6% arrived an hour or more late.
- That ranks #6 of 6 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was late-arriving aircraft (47%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion13%
- Extreme weather1%
- Security0%
Other airlines on SEA to LAX
- Alaska Airlines81% on time · 9 min avg delay
- Delta Air Lines83% on time · 11 min avg delay
- SkyWest Airlines85% on time · 19 min avg delay
- United Airlines90% on time · 9 min avg delay
- American Airlines87% on time · 18 min avg delay
Full SEA to LAX comparison →
Frontier Airlines on-time record across all routes →
295 Frontier Airlines flights tracked on this route; 9 cancelled, 0 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.