Flight F91247
Frontier Airlines flight F91247
Looking for F91247 in the air…
Grand Rapids (GRR) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 97 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 79.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 97 min
- Flights arriving 15+ minutes late
- Flights tracked
- 130
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Air traffic control & airport 41%
- Airline (crew, maintenance, cleaning) 6%
- 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 | 75.0% | 12 |
| October 2025 | 64.3% | 14 |
| November 2025 | 100.0% | 6 |
| December 2025 | 71.4% | 7 |
| January 2026 | 100.0% | 3 |
| April 2026 | 90.0% | 10 |
| May 2026 | 92.3% | 13 |
| June 2026 | 78.9% | 20 |
| July 2026 | 95.2% | 22 |
| August 2026 | 60.9% | 23 |
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