OO4935
OO4935 (SkyWest Airlines) is a multi-stop service on 25 routes, busiest Chicago to Oklahoma City. Of 693 departures recorded from October 2024 to July 2026, 77.1% left on time, according to the US BTS.
- On-time departures77.1%of 693 flights
- Average delay14.2 min
- July 202642▲ 55.6%vs July 2025
- Cancelled1.9%
- Legs flown under this number25
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 37 | 17 | ▼ 54.1% |
| February | 27 | 18 | ▼ 33.3% |
| March | 18 | 30 | ▲ 66.7% |
| April | 33 | 30 | ▼ 9.1% |
| May | 30 | 42 | ▲ 40.0% |
| June | 5 | 60 | ▲ 1,100.0% |
| July | 27 | 42 | ▲ 55.6% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 177 | 239 | ▲ 35.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 94.6% | 68.8% | ▼ 27.3% |
| February | 66.7% | 50.0% | ▼ 25.0% |
| March | 94.1% | 82.8% | ▼ 12.1% |
| April | 75.0% | 90.0% | ▲ 20.0% |
| May | 89.7% | 76.2% | ▼ 15.0% |
| June | 80.0% | 81.7% | ▲ 2.1% |
| July | 69.2% | 78.6% | ▲ 13.5% |
| August | 64.5% | – | – |
| September | 90.0% | – | – |
| October | 83.3% | – | in progress |
| November | 77.8% | – | – |
| December | 48.4% | – | – |
| Year-to-date average (Jan–Jul) | 81.3% | 75.4% | ▼ 7.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 2 | ▼ 50.0% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.1% 680
- Cancelled 1.9% 13
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 30, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 38 | 38 | 76.3% | 0 |
| November 2024 | 32 | 31 | 77.4% | 1 |
| December 2024 | 56 | 52 | 71.2% | 4 |
| January 2025 | 37 | 37 | 94.6% | 0 |
| February 2025 | 27 | 27 | 66.7% | 0 |
| March 2025 | 18 | 17 | 94.1% | 1 |
| April 2025 | 33 | 32 | 75.0% | 1 |
| May 2025 | 30 | 29 | 89.7% | 1 |
| June 2025 | 5 | 5 | 80.0% | 0 |
| July 2025 | 27 | 26 | 69.2% | 1 |
| August 2025 | 31 | 31 | 64.5% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 30 | 30 | 83.3% | 0 |
| November 2025 | 29 | 27 | 77.8% | 2 |
| December 2025 | 31 | 31 | 48.4% | 0 |
| January 2026 | 17 | 16 | 68.8% | 1 |
| February 2026 | 18 | 18 | 50.0% | 0 |
| March 2026 | 30 | 29 | 82.8% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 42 | 42 | 76.2% | 0 |
| June 2026 | 60 | 60 | 81.7% | 0 |
| July 2026 | 42 | 42 | 78.6% | 0 |