Flight OO4740
SkyWest Airlines flight OO4740
Looking for OO4740 in the air…
Milwaukee (MKE) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 80 minutes. It was cancelled 4.4% of the time.
- On-time arrivals
- 67.3%
- Less than 15 minutes late
- Cancelled
- 4.4%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 294
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 32%
- Late-arriving aircraft 27%
- Airline (crew, maintenance, cleaning) 25%
- Extreme weather 16%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Madison (MSN)
Historically, this flight arrives 15+ minutes late 49% of the time, and when it is late the delay averages 108 minutes. It was cancelled 7.5% of the time.
- On-time arrivals
- 51.4%
- Less than 15 minutes late
- Cancelled
- 7.5%
- Of scheduled flights
- Average delay when late
- 108 min
- Flights arriving 15+ minutes late
- Flights tracked
- 40
- Scheduled flights in the period
What caused the delays
- Extreme weather 49%
- Air traffic control & airport 24%
- Airline (crew, maintenance, cleaning) 19%
- Late-arriving aircraft 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to Arcata/Eureka (ACV)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 51 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 81.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 100%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Freeland (MBS) to Chicago (ORD)
Only 6 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 6
- Scheduled flights in the period
Buffalo (BUF) to Chicago (ORD)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Charlotte (CLT) to Chicago (ORD)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 15 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 93%
- Airline (crew, maintenance, cleaning) 7%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Rochester (ROC) to Chicago (ORD)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.8% | 30 |
| October 2025 | 67.7% | 31 |
| November 2025 | 74.1% | 30 |
| December 2025 | 55.2% | 31 |
| January 2026 | 50.0% | 31 |
| February 2026 | 82.1% | 28 |
| March 2026 | 71.4% | 31 |
| April 2026 | 53.6% | 30 |
| May 2026 | 67.7% | 31 |
| June 2026 | 82.8% | 30 |
| July 2026 | 50.0% | 31 |
| August 2026 | 66.7% | 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