OO4023
OO4023 (SkyWest Airlines) is a multi-stop service on 15 routes, busiest Seattle to Portland. Of 358 departures recorded from October 2024 to June 2026, 85.4% left on time, according to the US BTS.
- On-time departures85.4%of 358 flights
- Average delay5.5 min
- June 202612▲ 71.4%vs June 2025
- Cancelled0.3%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 27 | ▼ 3.6% |
| February | – | 11 | – |
| March | 13 | 24 | ▲ 84.6% |
| April | 21 | 30 | ▲ 42.9% |
| May | 30 | 56 | ▲ 86.7% |
| June | 7 | 12 | ▲ 71.4% |
| July | – | – | – |
| August | – | – | – |
| September | 34 | – | – |
| October | 8 | – | in progress |
| November | – | – | – |
| December | 34 | – | – |
according to the US BTS · October 2024 → June 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 75.0% | 88.9% | ▲ 18.5% |
| February | – | 81.8% | – |
| March | 92.3% | 91.3% | ▼ 1.1% |
| April | 90.5% | 96.7% | ▲ 6.8% |
| May | 93.3% | 91.1% | ▼ 2.4% |
| June | 85.7% | 91.7% | ▲ 7.0% |
| July | – | – | – |
| August | – | – | – |
| September | 85.3% | – | – |
| October | 75.0% | – | in progress |
| November | – | – | – |
| December | 52.9% | – | – |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | – | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → June 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% 357
- Cancelled 0.3% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 6, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA PDX Seattle–Tacoma International Airport – Portland International Airport | 208 | -1.0 min | 91.6% | 166 |
| PSC SEA Tri Cities Airport – Seattle–Tacoma International Airport | 276 | 0.5 min | 91.4% | 36 |
| PDX SEA Portland International Airport – Seattle–Tacoma International Airport | 208 | 6.6 min | 84.4% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 10 | 10 | 100.0% | 0 |
| December 2024 | 7 | 7 | 71.4% | 0 |
| January 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 13 | 13 | 92.3% | 0 |
| April 2025 | 21 | 21 | 90.5% | 0 |
| May 2025 | 30 | 30 | 93.3% | 0 |
| June 2025 | 7 | 7 | 85.7% | 0 |
| September 2025 | 34 | 34 | 85.3% | 0 |
| October 2025 | 8 | 8 | 75.0% | 0 |
| December 2025 | 34 | 34 | 52.9% | 0 |
| January 2026 | 27 | 27 | 88.9% | 0 |
| February 2026 | 11 | 11 | 81.8% | 0 |
| March 2026 | 24 | 23 | 91.3% | 1 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 56 | 56 | 91.1% | 0 |
| June 2026 | 12 | 12 | 91.7% | 0 |