Flight profile · Frontier Airlines
F91458
Chicago (MDW) to Orlando (MCO) · scheduled 8:35 PM – 12:29 AM
How F91458 performs
438 operations, 2023-11-16 to 2026-04-13.
F91458 arrived on time 78.2% of the time, against 76.5% for all MDW → MCO flights — this specific departure is 1.7 percentage points better than the route as a whole. Against Frontier Airlines’s own flights on this route it is 2.8 points better.
Source: US DOT Bureau of Transportation Statistics · 438 operations between 2023-11-16 to 2026-04-13
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| F91458 | 78.2% | 2.74% | -13 min | 9.6% | 438 |
| Frontier Airlines on MDW → MCO | 75.4% | 3.00% | -10 min | 12.6% | 867 |
| All MDW → MCO flights | 76.5% | 1.60% | -4 min | 7.6% | 8,540 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-16 to 2026-04-13
Other routes F91458 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 |
|---|---|---|---|
| MDW→PHL Chicago to Philadelphia | 2023-10-05 – 2023-11-02 | 8 | — |
Because the same number has served different journeys, the statistics above describe only the route F91458 currently operates. Blending them would produce an average of two different flights.
Why F91458 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for F91458 on MDW → MCO. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 438 records of F91458 operating MDW → MCO, 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.