OO4957
OO4957 (SkyWest Airlines) is a multi-stop service on 18 routes, busiest Dallas-Fort Worth to San Angelo. Of 1,054 departures recorded from October 2024 to July 2026, 82.9% left on time, according to the US BTS.
- On-time departures82.9%of 1,054 flights
- Average delay10.5 min
- July 202662▲ 0.0%vs July 2025
- Cancelled2.6%
- Legs flown under this number18
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 | 62 | 25 | ▼ 59.7% |
| February | 56 | 28 | ▼ 50.0% |
| March | 62 | 55 | ▼ 11.3% |
| April | 60 | 60 | 0.0% |
| May | 12 | 62 | ▲ 416.7% |
| June | 53 | 60 | ▲ 13.2% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 32 | – | – |
| October | 31 | – | in progress |
| November | 38 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 367 | 352 | ▼ 4.1% |
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 | 81.7% | 58.3% | ▼ 28.6% |
| February | 89.3% | 42.9% | ▼ 52.0% |
| March | 88.1% | 58.5% | ▼ 33.6% |
| April | 79.6% | 89.8% | ▲ 12.8% |
| May | 66.7% | 90.3% | ▲ 35.5% |
| June | 90.6% | 96.7% | ▲ 6.7% |
| July | 85.5% | 87.1% | ▲ 1.9% |
| August | 90.0% | – | – |
| September | 90.6% | – | – |
| October | 67.7% | – | in progress |
| November | 83.3% | – | – |
| December | 50.0% | – | – |
| Year-to-date average (Jan–Jul) | 83.1% | 74.8% | ▼ 9.9% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 3 | 2 | ▼ 33.3% |
| April | 6 | 1 | ▼ 83.3% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 8 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 11 | 4 | ▼ 63.6% |
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 97.4% 1,027
- Cancelled 2.6% 27
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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 80.0% | 0 |
| November 2024 | 59 | 59 | 88.1% | 0 |
| December 2024 | 62 | 61 | 85.3% | 1 |
| January 2025 | 62 | 60 | 81.7% | 2 |
| February 2025 | 56 | 56 | 89.3% | 0 |
| March 2025 | 62 | 59 | 88.1% | 3 |
| April 2025 | 60 | 54 | 79.6% | 6 |
| May 2025 | 12 | 12 | 66.7% | 0 |
| June 2025 | 53 | 53 | 90.6% | 0 |
| July 2025 | 62 | 62 | 85.5% | 0 |
| August 2025 | 62 | 60 | 90.0% | 2 |
| September 2025 | 32 | 32 | 90.6% | 0 |
| October 2025 | 31 | 31 | 67.7% | 0 |
| November 2025 | 38 | 30 | 83.3% | 8 |
| December 2025 | 11 | 10 | 50.0% | 1 |
| January 2026 | 25 | 24 | 58.3% | 1 |
| February 2026 | 28 | 28 | 42.9% | 0 |
| March 2026 | 55 | 53 | 58.5% | 2 |
| April 2026 | 60 | 59 | 89.8% | 1 |
| May 2026 | 62 | 62 | 90.3% | 0 |
| June 2026 | 60 | 60 | 96.7% | 0 |
| July 2026 | 62 | 62 | 87.1% | 0 |