Flight OO3821
SkyWest Airlines flight OO3821
Looking for OO3821 in the air…
Louisville (SDF) to Detroit (DTW)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 79 minutes. It was cancelled 1.5% of the time.
- On-time arrivals
- 87.1%
- Less than 15 minutes late
- Cancelled
- 1.5%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 205
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 73%
- Extreme weather 21%
- Air traffic control & airport 6%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Louisville (SDF)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 54 minutes. It was cancelled 1.2% of the time.
- On-time arrivals
- 84.5%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 170
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 83%
- Air traffic control & airport 9%
- Extreme weather 8%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Jose (SJC) to Salt Lake City (SLC)
Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 46 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 96.3%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 110
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 58%
- Extreme weather 42%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Salt Lake City (SLC) to San Jose (SJC)
Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 59 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 95.4%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 110
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 67%
- Extreme weather 23%
- Air traffic control & airport 10%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Shreveport (SHV) to Atlanta (ATL)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 87.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- 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).
Salt Lake City (SLC) to Sacramento (SMF)
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
Sacramento (SMF) to Salt Lake City (SLC)
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
In the news
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.7% | 60 |
| October 2025 | 96.8% | 62 |
| November 2025 | 94.8% | 60 |
| December 2025 | 92.0% | 50 |
| January 2026 | 85.7% | 29 |
| February 2026 | 73.9% | 46 |
| March 2026 | 81.0% | 62 |
| April 2026 | 93.3% | 60 |
| May 2026 | 91.7% | 12 |
| June 2026 | 85.4% | 48 |
| July 2026 | 88.7% | 62 |
| August 2026 | 90.3% | 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