OO4039
OO4039 (SkyWest Airlines) is a multi-stop service on 6 routes, busiest Seattle to Bozeman. Of 377 departures recorded from October 2024 to July 2026, 86.4% left on time, according to the US BTS.
- On-time departures86.4%of 377 flights
- Average delay5.2 min
- July 202631▲ 520.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number6
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 | 11 | 30 | ▲ 172.7% |
| February | 24 | 28 | ▲ 16.7% |
| March | 46 | 31 | ▼ 32.6% |
| April | 32 | 30 | ▼ 6.3% |
| May | 6 | 30 | ▲ 400.0% |
| June | 1 | 30 | ▲ 2,900.0% |
| July | 5 | 31 | ▲ 520.0% |
| August | – | – | – |
| September | 3 | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 9 | – | – |
| Year to date (Jan–Jul) | 125 | 210 | ▲ 68.0% |
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 | 90.9% | 93.3% | ▲ 2.7% |
| February | 79.2% | 89.3% | ▲ 12.8% |
| March | 84.8% | 93.3% | ▲ 10.1% |
| April | 96.9% | 90.0% | ▼ 7.1% |
| May | 100.0% | 60.0% | ▼ 40.0% |
| June | 100.0% | 83.3% | ▼ 16.7% |
| July | 80.0% | 77.4% | ▼ 3.2% |
| August | – | – | – |
| September | 100.0% | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 90.2% | 83.8% | ▼ 7.1% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | – | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.7% 376
- Cancelled 0.3% 1
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA BZN Seattle–Tacoma International Airport – Bozeman Yellowstone International Airport | 871 | 4.0 min | 84.4% | 225 |
| SLC SJC Salt Lake City International Airport – Mineta San Jose International Airport | 939 | 0.3 min | 94.4% | 54 |
| LGA OMA LaGuardia Airport – Eppley Airfield | 1,843 | 13.1 min | 80.5% | 41 |
| CLE DTW Cleveland Hopkins International Airport – Detroit Metropolitan Wayne County Airport | 153 | 14.7 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 10 | 10 | 100.0% | 0 |
| January 2025 | 11 | 11 | 90.9% | 0 |
| February 2025 | 24 | 24 | 79.2% | 0 |
| March 2025 | 46 | 46 | 84.8% | 0 |
| April 2025 | 32 | 32 | 96.9% | 0 |
| May 2025 | 6 | 6 | 100.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| July 2025 | 5 | 5 | 80.0% | 0 |
| September 2025 | 3 | 3 | 100.0% | 0 |
| December 2025 | 9 | 9 | 100.0% | 0 |
| January 2026 | 30 | 30 | 93.3% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 30 | 93.3% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 30 | 30 | 60.0% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |