Flight OO5439
SkyWest Airlines flight OO5439
Looking for OO5439 in the air…
Chicago (ORD) to Charleston (CRW)
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 81 minutes. It was cancelled 2.7% of the time.
- On-time arrivals
- 60.9%
- Less than 15 minutes late
- Cancelled
- 2.7%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 226
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 28%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Lincoln (LNK)
Historically, this flight arrives 15+ minutes late 62% of the time, and when it is late the delay averages 105 minutes. It was cancelled 4.9% of the time.
- On-time arrivals
- 38.5%
- Less than 15 minutes late
- Cancelled
- 4.9%
- Of scheduled flights
- Average delay when late
- 105 min
- Flights arriving 15+ minutes late
- Flights tracked
- 41
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 59%
- Late-arriving aircraft 21%
- Air traffic control & airport 15%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Houston (IAH) to Little Rock (LIT)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 68 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 74.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 68 min
- Flights arriving 15+ minutes late
- Flights tracked
- 35
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 36%
- Late-arriving aircraft 34%
- Air traffic control & airport 16%
- Extreme weather 14%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Greenville/Greer/Spartanburg (GSP)
Historically, this flight arrives 15+ minutes late 41% of the time, and when it is late the delay averages 51 minutes. It was cancelled 17.9% of the time.
- On-time arrivals
- 59.1%
- Less than 15 minutes late
- Cancelled
- 17.9%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Air traffic control & airport 32%
- Airline (crew, maintenance, cleaning) 24%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Grand Junction (GJT) to Denver (DEN)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 84.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Extreme weather 91%
- Airline (crew, maintenance, cleaning) 7%
- Air traffic control & airport 2%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 75.9% | 30 |
| October 2025 | 75.0% | 29 |
| November 2025 | 61.1% | 23 |
| December 2025 | 50.0% | 31 |
| January 2026 | 60.7% | 31 |
| February 2026 | 69.2% | 27 |
| March 2026 | 53.6% | 31 |
| April 2026 | 57.1% | 30 |
| May 2026 | 64.5% | 31 |
| June 2026 | 75.0% | 24 |
| July 2026 | 37.9% | 31 |
| August 2026 | 54.8% | 31 |
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