OO4159
OO4159 (SkyWest Airlines) flies Detroit to Appleton. Of 451 departures recorded from October 2024 to July 2026, 74.2% left on time, according to the US BTS.
Recorded departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 24 | ▼ 14.3% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 7 | 30 | ▲ 328.6% |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 12 | – | – |
according to the US BTS · October 2024 → July 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.4% | 50.0% | ▼ 35.4% |
| February | 67.9% | 70.8% | ▲ 4.4% |
| March | 86.7% | 51.9% | ▼ 40.2% |
| April | 96.7% | 66.7% | ▼ 31.0% |
| May | 67.7% | 80.7% | ▲ 19.1% |
| June | 71.4% | 83.3% | ▲ 16.7% |
| July | – | 73.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 75.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 1 | 4 | ▲ 300.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 1 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.0% 442
- Cancelled 2.0% 9
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW ATW Detroit Metropolitan Wayne County Airport – Appleton International Airport | 476 | 24.5 min | 74.2% | 451 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 87.5% | 0 |
| November 2024 | 26 | 26 | 80.8% | 0 |
| December 2024 | 31 | 29 | 75.9% | 2 |
| January 2025 | 31 | 31 | 77.4% | 0 |
| February 2025 | 28 | 28 | 67.9% | 0 |
| March 2025 | 31 | 30 | 86.7% | 1 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 31 | 67.7% | 0 |
| June 2025 | 7 | 7 | 71.4% | 0 |
| December 2025 | 12 | 12 | 75.0% | 0 |
| January 2026 | 31 | 30 | 50.0% | 1 |
| February 2026 | 24 | 24 | 70.8% | 0 |
| March 2026 | 31 | 27 | 51.9% | 4 |
| April 2026 | 30 | 30 | 66.7% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 30 | 73.3% | 1 |