Flight F91204
Frontier Airlines flight F91204
Looking for F91204 in the air…
Miami (MIA) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 80 minutes. It was cancelled 4.3% of the time.
- On-time arrivals
- 64.2%
- Less than 15 minutes late
- Cancelled
- 4.3%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 184
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 69%
- Airline (crew, maintenance, cleaning) 23%
- Air traffic control & airport 7%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 92.3% | 13 |
| October 2025 | 85.7% | 14 |
| November 2025 | 84.6% | 14 |
| December 2025 | 50.0% | 7 |
| January 2026 | 77.8% | 9 |
| February 2026 | 50.0% | 4 |
| March 2026 | 55.0% | 21 |
| April 2026 | 50.0% | 8 |
| May 2026 | 92.9% | 14 |
| June 2026 | 61.9% | 21 |
| July 2026 | 42.3% | 29 |
| August 2026 | 50.0% | 30 |
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