OO4122
OO4122 (SkyWest Airlines) is a multi-stop service on 12 routes, busiest Louisville to Detroit. Of 406 departures recorded from October 2024 to June 2026, 78.6% left on time, according to the US BTS.
- On-time departures78.6%of 406 flights
- Average delay21.0 min
- June 20262▼ 66.7%vs June 2025
- Cancelled1.0%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 24 | 35 | ▲ 45.8% |
| February | 52 | 9 | ▼ 82.7% |
| March | 36 | 24 | ▼ 33.3% |
| April | 26 | 30 | ▲ 15.4% |
| May | 25 | 16 | ▼ 36.0% |
| June | 6 | 2 | ▼ 66.7% |
| July | – | – | – |
| August | 20 | – | – |
| September | 30 | – | – |
| October | 5 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jun) | 169 | 116 | ▼ 31.4% |
according to the US BTS · October 2024 → June 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 79.2% | 53.1% | ▼ 32.9% |
| February | 73.1% | 66.7% | ▼ 8.8% |
| March | 77.8% | 87.0% | ▲ 11.8% |
| April | 73.1% | 80.0% | ▲ 9.5% |
| May | 68.0% | 81.3% | ▲ 19.5% |
| June | 100.0% | 50.0% | ▼ 50.0% |
| July | – | – | – |
| August | 100.0% | – | – |
| September | 96.7% | – | – |
| October | 100.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jun) | 78.5% | 69.7% | ▼ 11.3% |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 3 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jun) | 0 | 4 |
according to the US BTS · October 2024 → June 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.0% 402
- Cancelled 1.0% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 6, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SDF DTW Louisville Muhammad Ali International Airport – Detroit Metropolitan Wayne County Airport | 493 | 16.9 min | 78.2% | 101 |
| MEM DTW Frederick W. Smith International Airport – Detroit Metropolitan Wayne County Airport | 982 | -6.5 min | 98.2% | 55 |
| DTW BTV Detroit Metropolitan Wayne County Airport – Patrick Leahy Burlington International Airport | 862 | 16.3 min | 78.3% | 46 |
| BTV DTW Patrick Leahy Burlington International Airport – Detroit Metropolitan Wayne County Airport | 862 | 25.0 min | 67.4% | 46 |
| GRR DTW Gerald R. Ford International Airport – Detroit Metropolitan Wayne County Airport | 193 | 23.3 min | 85.7% | 36 |
| BNA JFK Nashville International Airport – John F. Kennedy International Airport | 1,230 | 2.1 min | 88.9% | 36 |
| PWM DTW Portland International Jetport – Detroit Metropolitan Wayne County Airport | 1,073 | 58.2 min | 73.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 60.0% | 0 |
| November 2024 | 28 | 28 | 92.9% | 0 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| January 2025 | 24 | 24 | 79.2% | 0 |
| February 2025 | 52 | 52 | 73.1% | 0 |
| March 2025 | 36 | 36 | 77.8% | 0 |
| April 2025 | 26 | 26 | 73.1% | 0 |
| May 2025 | 25 | 25 | 68.0% | 0 |
| June 2025 | 6 | 6 | 100.0% | 0 |
| August 2025 | 20 | 20 | 100.0% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| January 2026 | 35 | 32 | 53.1% | 3 |
| February 2026 | 9 | 9 | 66.7% | 0 |
| March 2026 | 24 | 23 | 87.0% | 1 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 16 | 16 | 81.3% | 0 |
| June 2026 | 2 | 2 | 50.0% | 0 |