Flight OO3979
SkyWest Airlines flight OO3979
Looking for OO3979 in the air…
San Jose (SJC) to Los Angeles (LAX)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 227 minutes. It was cancelled 0.5% of the time.
- On-time arrivals
- 97.1%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 227 min
- Flights arriving 15+ minutes late
- Flights tracked
- 208
- 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).
Kalamazoo (AZO) to Detroit (DTW)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 87 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 80.6%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 73
- Scheduled flights in the period
What caused the delays
- Extreme weather 55%
- Airline (crew, maintenance, cleaning) 35%
- Air traffic control & airport 10%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Kalamazoo (AZO)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 82 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 80.6%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 82 min
- Flights arriving 15+ minutes late
- Flights tracked
- 73
- Scheduled flights in the period
What caused the delays
- Extreme weather 47%
- Airline (crew, maintenance, cleaning) 42%
- Air traffic control & airport 11%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Grand Rapids (GRR) to Detroit (DTW)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 105 minutes. It was cancelled 2.8% of the time.
- On-time arrivals
- 71.4%
- Less than 15 minutes late
- Cancelled
- 2.8%
- Of scheduled flights
- Average delay when late
- 105 min
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 91%
- Air traffic control & airport 9%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 30 |
| October 2025 | 100.0% | 31 |
| November 2025 | 90.0% | 30 |
| December 2025 | 96.3% | 28 |
| January 2026 | 100.0% | 30 |
| February 2026 | 100.0% | 28 |
| March 2026 | 70.0% | 31 |
| April 2026 | 90.0% | 30 |
| May 2026 | 100.0% | 6 |
| June 2026 | 88.1% | 42 |
| July 2026 | 82.7% | 54 |
| August 2026 | 72.0% | 50 |
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