OO4129
OO4129 (SkyWest Airlines) is a multi-stop service on 3 routes, busiest Minneapolis to Dulles. Of 505 departures recorded from October 2024 to July 2026, 86.1% left on time, according to the US BTS.
- On-time departures86.1%of 505 flights
- Average delay9.0 min
- July 202631
- Cancelled1.4%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 30 | ▼ 3.2% |
| June | 7 | 30 | ▲ 328.6% |
| July | – | 31 | – |
| August | – | – | – |
| September | 36 | – | – |
| October | 8 | – | 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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 86.7% | 86.2% | ▼ 0.5% |
| February | 88.9% | 85.2% | ▼ 4.2% |
| March | 87.1% | 79.3% | ▼ 8.9% |
| April | 86.7% | 83.3% | ▼ 3.9% |
| May | 90.3% | 86.7% | ▼ 4.0% |
| June | 85.7% | 80.0% | ▼ 6.7% |
| July | – | 77.4% | – |
| August | – | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | 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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 2 | ▲ 100.0% |
| February | 1 | 1 | 0.0% |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 0 | – | 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.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.6% 498
- Cancelled 1.4% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSP IAD Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Washington Dulles International Airport | 1,459 | 10.5 min | 84.8% | 461 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 96.6% | 0 |
| December 2024 | 31 | 31 | 74.2% | 0 |
| January 2025 | 31 | 30 | 86.7% | 1 |
| February 2025 | 28 | 27 | 88.9% | 1 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 7 | 7 | 85.7% | 0 |
| September 2025 | 36 | 36 | 100.0% | 0 |
| October 2025 | 8 | 8 | 100.0% | 0 |
| December 2025 | 12 | 12 | 75.0% | 0 |
| January 2026 | 31 | 29 | 86.2% | 2 |
| February 2026 | 28 | 27 | 85.2% | 1 |
| March 2026 | 31 | 29 | 79.3% | 2 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 30 | 30 | 86.7% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |