OO4009
OO4009 (SkyWest Airlines) is a multi-stop service on 8 routes, busiest Seattle to Sacramento. Of 344 departures recorded from October 2024 to May 2026, 79.9% left on time, according to the US BTS.
- On-time departures79.9%of 344 flights
- Average delay14.7 min
- May 20265▼ 16.7%vs May 2025
- Cancelled0.0%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 56 | ▲ 100.0% |
| February | 24 | 52 | ▲ 116.7% |
| March | 29 | 20 | ▼ 31.0% |
| April | 30 | 16 | ▼ 46.7% |
| May | 6 | 5 | ▼ 16.7% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 12 | – | – |
| Year to date (Jan–May) | 117 | 149 | ▲ 27.4% |
according to the US BTS · October 2024 → May 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 89.3% | 55.4% | ▼ 38.0% |
| February | 91.7% | 63.5% | ▼ 30.8% |
| March | 93.1% | 85.0% | ▼ 8.7% |
| April | 100.0% | 68.8% | ▼ 31.3% |
| May | 100.0% | 80.0% | ▼ 20.0% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–May) | 94.8% | 70.5% | ▼ 25.6% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 0 | 0 |
according to the US BTS · October 2024 → May 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 100.0% 344
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 6, 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 SMF Seattle–Tacoma International Airport – Sacramento International Airport | 975 | 1.3 min | 89.9% | 139 |
| SMF SEA Sacramento International Airport – Seattle–Tacoma International Airport | 975 | -0.7 min | 96.6% | 59 |
| LAN DTW Capital Region International Airport – Detroit Metropolitan Wayne County Airport | 119 | 41.0 min | 61.2% | 49 |
| DTW LAN Detroit Metropolitan Wayne County Airport – Capital Region International Airport | 119 | 33.9 min | 61.2% | 49 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 21 | 21 | 95.2% | 0 |
| December 2024 | 31 | 31 | 77.4% | 0 |
| January 2025 | 28 | 28 | 89.3% | 0 |
| February 2025 | 24 | 24 | 91.7% | 0 |
| March 2025 | 29 | 29 | 93.1% | 0 |
| April 2025 | 30 | 30 | 100.0% | 0 |
| May 2025 | 6 | 6 | 100.0% | 0 |
| December 2025 | 12 | 12 | 100.0% | 0 |
| January 2026 | 56 | 56 | 55.4% | 0 |
| February 2026 | 52 | 52 | 63.5% | 0 |
| March 2026 | 20 | 20 | 85.0% | 0 |
| April 2026 | 16 | 16 | 68.8% | 0 |
| May 2026 | 5 | 5 | 80.0% | 0 |