OO4440
OO4440 (SkyWest Airlines) is a multi-stop service on 2 routes, busiest Appleton to Detroit. Of 448 departures recorded from December 2025 to July 2026, 76.6% left on time, according to the US BTS.
- On-time departures76.6%of 448 flights
- Average delay18.8 min
- July 202662
- Cancelled0.9%
- Legs flown under this number2
Recorded departures by month
Short series — OO4440 has only 8 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
The most recent periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 62 | – |
| February | – | 56 | – |
| March | – | 62 | – |
| April | – | 60 | – |
| May | – | 62 | – |
| June | – | 60 | – |
| July | – | 62 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 24 | – | – |
according to the US BTS · December 2025 → July 2026
On-time departures by month
Short series — OO4440 has only 8 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 62.9% | – |
| February | – | 80.4% | – |
| March | – | 55.2% | – |
| April | – | 75.0% | – |
| May | – | 98.4% | – |
| June | – | 85.0% | – |
| July | – | 85.5% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 58.3% | – | – |
according to the US BTS · December 2025 → July 2026
Average departure delay by month
Short series — OO4440 has only 8 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · December 2025 → July 2026
Cancelled departures by month
Short series — OO4440 has only 8 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 4 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · December 2025 → July 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 99.1% 444
- Cancelled 0.9% 4
Share of all recorded flights in the period, all legs. · Dec 20, 2025 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW ATW Detroit Metropolitan Wayne County Airport – Appleton International Airport | 476 | 13.2 min | 79.3% | 224 |
| ATW DTW Appleton International Airport – Detroit Metropolitan Wayne County Airport | 476 | 24.4 min | 73.9% | 224 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2025 | 24 | 24 | 58.3% | 0 |
| January 2026 | 62 | 62 | 62.9% | 0 |
| February 2026 | 56 | 56 | 80.4% | 0 |
| March 2026 | 62 | 58 | 55.2% | 4 |
| April 2026 | 60 | 60 | 75.0% | 0 |
| May 2026 | 62 | 62 | 98.4% | 0 |
| June 2026 | 60 | 60 | 85.0% | 0 |
| July 2026 | 62 | 62 | 85.5% | 0 |