F
Is Frontier Airlines on time Ontario to San Francisco?
177 flights · January 2025 – August 2026 · all airlines on ONT to SFO →
41.62%
Arrived on time
Route average 64.92%
2.26%
Cancelled
Route average 0.78%
71 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| United Airlines | 1,007 | 70.69% | D |
| SkyWest Airlines | 106 | 48.08% | F |
Month by month
Jul 2025
peak 78
Jun 2026