D
Is Southwest Airlines on time Philadelphia to Denver?
879 flights · January 2025 – August 2026 · all airlines on PHL to DEN →
68.98%
Arrived on time
Route average 74.94%
0.8%
Cancelled
Route average 1.13%
57 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| United Airlines | 953 | 83.94% | B |
| American Airlines | 877 | 73.32% | D |
| Frontier Airlines | 296 | 68.38% | D |
Month by month
Jul 2025
peak 81
Jun 2026