OO4439
OO4439 (SkyWest Airlines) flies Sacramento to Seattle. Of 122 departures recorded from January 2026 to May 2026, 92.5% left on time, according to the US BTS.
Recorded departures by month
Short series — OO4439 has only 5 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods5 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 27 | – |
| February | – | 28 | – |
| March | – | 31 | – |
| April | – | 30 | – |
| May | – | 6 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → May 2026
On-time departures by month
Short series — OO4439 has only 5 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods5 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 84.6% | – |
| February | – | 96.4% | – |
| March | – | 93.3% | – |
| April | – | 93.3% | – |
| May | – | 100.0% | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → May 2026
Average departure delay by month
Short series — OO4439 has only 5 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · January 2026 → May 2026
Cancelled departures by month
Short series — OO4439 has only 5 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods5 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 0 | – |
| March | – | 1 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → May 2026
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.4% 120
- Cancelled 1.6% 2
Share of all recorded flights in the period, all legs. · Jan 5, 2026 → May 6, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SMF SEA Sacramento International Airport – Seattle–Tacoma International Airport | 975 | 3.7 min | 92.5% | 122 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2026 | 27 | 26 | 84.6% | 1 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 31 | 30 | 93.3% | 1 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 6 | 6 | 100.0% | 0 |