C
Is Frontier Airlines on time San Diego to Denver?
704 flights · January 2025 – August 2026 · all airlines on SAN to DEN →
81.56%
Arrived on time
Route average 79.22%
1.28%
Cancelled
Route average 0.89%
79 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| Southwest Airlines | 2,387 | 72.39% | D |
| United Airlines | 2,081 | 85.37% | B |
| Alaska Airlines | 433 | 83.41% | B |
| SkyWest Airlines | 342 | 79.23% | C |
Month by month
Jul 2025
peak 94
Jun 2026