Flight profile · Frontier Airlines
F91781
Philadelphia (PHL) to Sarasota/Bradenton (SRQ) · scheduled 7:00 AM – 6:50 PM
How F91781 performs
392 operations, 2023-11-16 to 2026-05-16.
F91781 arrived on time 77.8% of the time, against 79.4% for all PHL → SRQ flights — this specific departure is 1.6 percentage points worse than the route as a whole. Against Frontier Airlines’s own flights on this route it is 1.0 points better.
Source: US DOT Bureau of Transportation Statistics · 392 operations between 2023-11-16 to 2026-05-16
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| F91781 | 77.8% | 3.57% | -15 min | 8.7% | 392 |
| Frontier Airlines on PHL → SRQ | 76.8% | 3.88% | -14 min | 9.1% | 515 |
| All PHL → SRQ flights | 79.4% | 3.37% | -9 min | 7.8% | 1,664 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-16 to 2026-05-16
Why F91781 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
Share of the delay minutes US DOT attributed to each cause for F91781 on PHL → SRQ. 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 392 records of F91781 operating PHL → SRQ, 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.