Flight profile · Frontier Airlines
F91500
Ontario (ONT) to Denver (DEN) · scheduled 12:59 AM – 4:19 AM
How F91500 performs
797 operations, 2023-11-16 to 2026-06-30.
F91500 arrived on time 84.8% of the time, against 82.4% for all ONT → DEN flights — this specific departure is 2.5 percentage points better than the route as a whole. Against Frontier Airlines’s own flights on this route it is 5.5 points better.
Source: US DOT Bureau of Transportation Statistics · 797 operations between 2023-11-16 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| F91500 | 84.8% | 0.63% | -9 min | 5.4% | 797 |
| Frontier Airlines on ONT → DEN | 79.3% | 1.15% | -8 min | 8.4% | 1,910 |
| All ONT → DEN flights | 82.4% | 0.75% | -8 min | 6.5% | 8,431 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-16 to 2026-06-30
Other routes F91500 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| DEN→FSD Denver to Sioux Falls | 2024-04-10 – 2024-05-15 | 6 | — |
| DEN→MSP Denver to Minneapolis | 2024-04-13 – 2024-05-11 | 4 | — |
Because the same number has served different journeys, the statistics above describe only the route F91500 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 797 records of F91500 operating ONT → DEN, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.