Flight OO4640
SkyWest Airlines flight OO4640
Looking for OO4640 in the air…
Huntsville (HSV) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 81 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 89.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 365
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 82%
- Air traffic control & airport 12%
- Late-arriving aircraft 7%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to Gunnison (GUC)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 83 minutes. It was cancelled 0.7% of the time.
- On-time arrivals
- 85.8%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 83 min
- Flights arriving 15+ minutes late
- Flights tracked
- 135
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 47%
- Air traffic control & airport 19%
- Extreme weather 17%
- Late-arriving aircraft 16%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.0% | 30 |
| October 2025 | 93.5% | 31 |
| November 2025 | 90.0% | 30 |
| December 2025 | 80.6% | 31 |
| January 2026 | 87.1% | 31 |
| February 2026 | 89.3% | 28 |
| March 2026 | 84.2% | 58 |
| April 2026 | 94.3% | 35 |
| May 2026 | 92.9% | 42 |
| June 2026 | 86.7% | 60 |
| July 2026 | 83.9% | 62 |
| August 2026 | 91.9% | 62 |
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