Flight F91820
Frontier Airlines flight F91820
Looking for F91820 in the air…
Phoenix (PHX) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 79 minutes. It was cancelled 0.4% of the time.
- On-time arrivals
- 72.4%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 240
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 58%
- Air traffic control & airport 23%
- Airline (crew, maintenance, cleaning) 18%
- Extreme weather 0%
- 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 | 71.4% | 21 |
| October 2025 | 77.8% | 18 |
| November 2025 | 78.9% | 19 |
| December 2025 | 89.5% | 19 |
| January 2026 | 93.3% | 16 |
| February 2026 | 93.8% | 16 |
| March 2026 | 56.0% | 25 |
| April 2026 | 94.7% | 19 |
| May 2026 | 90.9% | 11 |
| June 2026 | 62.5% | 24 |
| July 2026 | 56.0% | 25 |
| August 2026 | 44.4% | 27 |
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