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Is Frontier Airlines on time Chicago to Denver?
332 flights · January 2025 – August 2026 · all airlines on ORD to DEN →
72.53%
Arrived on time
Route average 74.19%
2.11%
Cancelled
Route average 1.23%
139 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| United Airlines | 3,758 | 77.42% | C |
| American Airlines | 1,471 | 66.46% | F |
| Southwest Airlines | 483 | 73% | D |
| Envoy Air | 125 | 76% | C |
Month by month
Jul 2025
peak 91
Jun 2026