Flight OO4778
SkyWest Airlines flight OO4778
Looking for OO4778 in the air…
Chicago (ORD) to Fargo (FAR)
Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 65 minutes. It was cancelled 2.3% of the time.
- On-time arrivals
- 63.7%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 259
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 50%
- Air traffic control & airport 24%
- Late-arriving aircraft 23%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Fargo (FAR) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 120 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 73.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 120 min
- Flights arriving 15+ minutes late
- Flights tracked
- 81
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 45%
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 10%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Madison (MSN)
Only 10 flights on record, which is too few for reliable odds.
- On-time arrivals
- 80.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 395 min
- Flights arriving 15+ minutes late
- Flights tracked
- 10
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 91%
- Airline (crew, maintenance, cleaning) 9%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to St Louis (STL)
Only 9 flights on record, which is too few for reliable odds.
- On-time arrivals
- 33.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 194 min
- Flights arriving 15+ minutes late
- Flights tracked
- 9
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Air traffic control & airport 26%
- Extreme weather 6%
- Airline (crew, maintenance, cleaning) 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 69.0% | 30 |
| October 2025 | 71.0% | 31 |
| November 2025 | 64.3% | 30 |
| December 2025 | 41.9% | 31 |
| January 2026 | 64.3% | 30 |
| February 2026 | 76.9% | 27 |
| March 2026 | 51.6% | 31 |
| April 2026 | 66.7% | 29 |
| May 2026 | 80.5% | 41 |
| June 2026 | 72.4% | 30 |
| July 2026 | 66.7% | 31 |
| August 2026 | 55.6% | 18 |
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