Flight OO4901
SkyWest Airlines flight OO4901
Looking for OO4901 in the air…
Chicago (ORD) to Richmond (RIC)
Historically, this flight arrives 15+ minutes late 38% of the time, and when it is late the delay averages 174 minutes. It was cancelled 9.1% of the time.
- On-time arrivals
- 62.5%
- Less than 15 minutes late
- Cancelled
- 9.1%
- Of scheduled flights
- Average delay when late
- 174 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 41%
- Extreme weather 37%
- Airline (crew, maintenance, cleaning) 16%
- Air traffic control & airport 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Alexandria (AEX) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 105 minutes. It was cancelled 6.1% of the time.
- On-time arrivals
- 74.2%
- Less than 15 minutes late
- Cancelled
- 6.1%
- Of scheduled flights
- Average delay when late
- 105 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Airline (crew, maintenance, cleaning) 34%
- Extreme weather 4%
- Air traffic control & airport 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Alexandria (AEX)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 70 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 70 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 52%
- Air traffic control & airport 28%
- Late-arriving aircraft 21%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Madison (MSN)
Historically, this flight arrives 15+ minutes late 42% of the time, and when it is late the delay averages 111 minutes. It was cancelled 3.1% of the time.
- On-time arrivals
- 58.1%
- Less than 15 minutes late
- Cancelled
- 3.1%
- Of scheduled flights
- Average delay when late
- 111 min
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
What caused the delays
- Extreme weather 53%
- Air traffic control & airport 26%
- Airline (crew, maintenance, cleaning) 12%
- Late-arriving aircraft 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Tucson (TUS)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 126 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 83.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 126 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 34%
- Security 10%
- Air traffic control & airport 1%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Shreveport (SHV) to Charlotte (CLT)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 135 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 82.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 135 min
- Flights arriving 15+ minutes late
- Flights tracked
- 29
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 48%
- Air traffic control & airport 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Hailey (SUN) to Phoenix (PHX)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 62.5%
- Less than 15 minutes late
- Cancelled
- 11.1%
- Of scheduled flights
- Average delay when late
- 276 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Extreme weather 59%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 9%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Santa Barbara (SBA)
Only 14 flights on record, which is too few for reliable odds.
- On-time arrivals
- 78.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 14
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Air traffic control & airport 43%
- Extreme weather 11%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Santa Barbara (SBA) to Phoenix (PHX)
Only 10 flights on record, which is too few for reliable odds.
- On-time arrivals
- 70.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 30 min
- Flights arriving 15+ minutes late
- Flights tracked
- 10
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Airline (crew, maintenance, cleaning) 39%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Richmond (RIC) 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
- 130 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- 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).
Knoxville/Maryville (TYS) 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 | 73.2% | 58 |
| October 2025 | 79.4% | 34 |
| November 2025 | 73.1% | 28 |
| December 2025 | 56.0% | 29 |
| January 2026 | 50.0% | 27 |
| February 2026 | 70.0% | 10 |
| March 2026 | 79.2% | 24 |
| April 2026 | 100.0% | 6 |
| May 2026 | 0.0% | 1 |
| June 2026 | 100.0% | 1 |
| August 2026 | 81.5% | 27 |
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