OO4943
OO4943 (SkyWest Airlines) is a multi-stop service on 19 routes, busiest Chicago to Burlington. Of 660 departures recorded from October 2024 to July 2026, 75.3% left on time, according to the US BTS.
- On-time departures75.3%of 660 flights
- Average delay23.5 min
- July 202631▲ 6.9%vs July 2025
- Cancelled3.6%
- Legs flown under this number19
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 | 29 | 21 | ▼ 27.6% |
| February | 24 | 44 | ▲ 83.3% |
| March | 26 | 62 | ▲ 138.5% |
| April | 3 | 60 | ▲ 1,900.0% |
| May | 28 | 47 | ▲ 67.9% |
| June | 30 | 30 | 0.0% |
| July | 29 | 31 | ▲ 6.9% |
| August | 14 | – | – |
| September | 29 | – | – |
| October | 30 | – | in progress |
| November | 17 | – | – |
| December | 16 | – | – |
| Year to date (Jan–Jul) | 169 | 295 | ▲ 74.6% |
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 | 82.8% | 60.0% | ▼ 27.5% |
| February | 91.7% | 88.6% | ▼ 3.3% |
| March | 92.3% | 100.0% | ▲ 8.3% |
| April | 100.0% | 78.6% | ▼ 21.4% |
| May | 85.7% | 67.4% | ▼ 21.3% |
| June | 28.6% | 50.0% | ▲ 75.0% |
| July | 29.6% | 75.9% | ▲ 156.0% |
| August | 57.1% | – | – |
| September | 77.8% | – | – |
| October | 86.7% | – | in progress |
| November | 94.1% | – | – |
| December | 53.3% | – | – |
| Year-to-date average (Jan–Jul) | 73.0% | 74.4% | ▲ 1.9% |
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 | 0 | 0 | – |
| April | 0 | 4 | – |
| May | 0 | 4 | – |
| June | 2 | 6 | ▲ 200.0% |
| July | 2 | 2 | 0.0% |
| August | 0 | – | – |
| September | 2 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 4 | 17 | ▲ 325.0% |
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 96.4% 636
- Cancelled 3.6% 24
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 29 | 29 | 58.6% | 0 |
| December 2024 | 44 | 44 | 75.0% | 0 |
| January 2025 | 29 | 29 | 82.8% | 0 |
| February 2025 | 24 | 24 | 91.7% | 0 |
| March 2025 | 26 | 26 | 92.3% | 0 |
| April 2025 | 3 | 3 | 100.0% | 0 |
| May 2025 | 28 | 28 | 85.7% | 0 |
| June 2025 | 30 | 28 | 28.6% | 2 |
| July 2025 | 29 | 27 | 29.6% | 2 |
| August 2025 | 14 | 14 | 57.1% | 0 |
| September 2025 | 29 | 27 | 77.8% | 2 |
| October 2025 | 30 | 30 | 86.7% | 0 |
| November 2025 | 17 | 17 | 94.1% | 0 |
| December 2025 | 16 | 15 | 53.3% | 1 |
| January 2026 | 21 | 20 | 60.0% | 1 |
| February 2026 | 44 | 44 | 88.6% | 0 |
| March 2026 | 62 | 62 | 100.0% | 0 |
| April 2026 | 60 | 56 | 78.6% | 4 |
| May 2026 | 47 | 43 | 67.4% | 4 |
| June 2026 | 30 | 24 | 50.0% | 6 |
| July 2026 | 31 | 29 | 75.9% | 2 |