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Is Southwest Airlines on time Phoenix to Seattle?
1,037 flights · January 2025 – August 2026 · all airlines on PHX to SEA →
64.76%
Arrived on time
Route average 82.69%
0.58%
Cancelled
Route average 0.65%
43 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| Alaska Airlines | 2,903 | 84.86% | B |
| Delta Air Lines | 1,764 | 87.8% | A |
| Envoy Air | 692 | 87.06% | A |
| SkyWest Airlines | 506 | 82.63% | B |
| American Airlines | 202 | 81.59% | B |
| Frontier Airlines | 165 | 86.06% | A |
Month by month
Jul 2025
peak 86
Jun 2026