—
Is Frontier Airlines on time Ontario to Portland?
86 flights · January 2025 – August 2026 · all airlines on ONT to PDX →
75.58%
Arrived on time
Route average 89.03%
0%
Cancelled
Route average 0.55%
37 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| Alaska Airlines | 402 | 91.48% | A |
| SkyWest Airlines | 62 | 91.94% | — |
Month by month
Jul 2025
peak 100
Dec 2025