OO4090
OO4090 (SkyWest Airlines) is a multi-stop service on 5 routes, busiest Seattle to Boise. Of 612 departures recorded from October 2024 to July 2026, 87.0% left on time, according to the US BTS.
- On-time departures87.0%of 612 flights
- Average delay8.5 min
- July 202632▲ 23.1%vs July 2025
- Cancelled0.7%
- Legs flown under this number5
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 | 30 | 24 | ▼ 20.0% |
| February | 28 | 23 | ▼ 17.9% |
| March | 31 | 28 | ▼ 9.7% |
| April | 30 | 26 | ▼ 13.3% |
| May | 29 | 24 | ▼ 17.2% |
| June | 27 | 30 | ▲ 11.1% |
| July | 26 | 32 | ▲ 23.1% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 29 | – | in progress |
| November | 29 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 201 | 187 | ▼ 7.0% |
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 | 86.7% | 87.5% | ▲ 1.0% |
| February | 78.6% | 100.0% | ▲ 27.3% |
| March | 87.1% | 81.5% | ▼ 6.5% |
| April | 93.3% | 92.3% | ▼ 1.1% |
| May | 93.1% | 91.7% | ▼ 1.5% |
| June | 77.8% | 83.3% | ▲ 7.1% |
| July | 84.6% | 87.5% | ▲ 3.4% |
| August | 83.9% | – | – |
| September | 90.0% | – | – |
| October | 93.1% | – | in progress |
| November | 92.6% | – | – |
| December | 64.3% | – | – |
| Year-to-date average (Jan–Jul) | 85.9% | 89.1% | ▲ 3.8% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| 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 99.3% 608
- Cancelled 0.7% 4
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA BOI Seattle–Tacoma International Airport – Boise Air Terminal/Gowen Field | 641 | 4.2 min | 88.1% | 413 |
| MSP DLH Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Duluth International Airport | 232 | 19.0 min | 84.1% | 184 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 28 | 27 | 85.2% | 1 |
| January 2025 | 30 | 30 | 86.7% | 0 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 29 | 29 | 93.1% | 0 |
| June 2025 | 27 | 27 | 77.8% | 0 |
| July 2025 | 26 | 26 | 84.6% | 0 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 29 | 29 | 93.1% | 0 |
| November 2025 | 29 | 27 | 92.6% | 2 |
| December 2025 | 28 | 28 | 64.3% | 0 |
| January 2026 | 24 | 24 | 87.5% | 0 |
| February 2026 | 23 | 23 | 100.0% | 0 |
| March 2026 | 28 | 27 | 81.5% | 1 |
| April 2026 | 26 | 26 | 92.3% | 0 |
| May 2026 | 24 | 24 | 91.7% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 32 | 32 | 87.5% | 0 |