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Is Alaska Airlines on time Ontario to Seattle?
1,268 flights · January 2025 – August 2026 · all airlines on ONT to SEA →
81.66%
Arrived on time
Route average 86.37%
2.37%
Cancelled
Route average 1.29%
52 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| SkyWest Airlines | 1,085 | 92.13% | A |
| Frontier Airlines | 169 | 82.84% | B |
| Delta Air Lines | 29 | 93.1% | — |
Month by month
Jul 2025
peak 94
Jun 2026