Flight F91791
Frontier Airlines flight F91791
Looking for F91791 in the air…
Philadelphia (PHL) to Pittsburgh (PIT)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 106 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 71.0%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 106 min
- Flights arriving 15+ minutes late
- Flights tracked
- 70
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Airline (crew, maintenance, cleaning) 24%
- Air traffic control & airport 7%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Jan 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 64.7% | 17 |
| October 2025 | 66.7% | 18 |
| November 2025 | 90.5% | 21 |
| December 2025 | 50.0% | 11 |
| January 2026 | 66.7% | 3 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data