D
Is Frontier Airlines on time San Francisco to Denver?
604 flights · January 2025 – August 2026 · all airlines on SFO to DEN →
73.24%
Arrived on time
Route average 75.45%
0.99%
Cancelled
Route average 0.46%
61 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| United Airlines | 3,370 | 82.2% | B |
| Southwest Airlines | 1,436 | 60.47% | F |
Month by month
Jul 2025
peak 87
Jun 2026