OO3439
OO3439 (SkyWest Airlines) is a multi-stop service on 9 routes, busiest San Diego to Sacramento. Of 856 departures recorded from October 2024 to July 2026, 72.6% left on time, according to the US BTS.
- On-time departures72.6%of 856 flights
- Average delay13.3 min
- July 202662▲ 14.8%vs July 2025
- Cancelled0.7%
- Legs flown under this number9
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 | 26 | 34 | ▲ 30.8% |
| March | 26 | 49 | ▲ 88.5% |
| April | 14 | 37 | ▲ 164.3% |
| May | 44 | 40 | ▼ 9.1% |
| June | 52 | 59 | ▲ 13.5% |
| July | 54 | 62 | ▲ 14.8% |
| August | 42 | – | – |
| September | 26 | – | – |
| October | 39 | – | in progress |
| November | 58 | – | – |
| December | 38 | – | – |
| Year to date (Jan–Jul) | 246 | 305 | ▲ 24.0% |
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 | 60.0% | 81.8% | ▲ 36.4% |
| February | 73.1% | 79.4% | ▲ 8.7% |
| March | 80.8% | 73.5% | ▼ 9.0% |
| April | 92.9% | 100.0% | ▲ 7.7% |
| May | 81.8% | 42.5% | ▼ 48.1% |
| June | 73.1% | 76.3% | ▲ 4.4% |
| July | 77.8% | 75.4% | ▼ 3.0% |
| August | 66.7% | – | – |
| September | 88.5% | – | – |
| October | 57.9% | – | in progress |
| November | 69.6% | – | – |
| December | 68.4% | – | – |
| Year-to-date average (Jan–Jul) | 77.1% | 75.6% | ▼ 1.9% |
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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
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% 850
- Cancelled 0.7% 6
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 15.4 min | 69.0% | 396 |
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | 11.6 min | 73.2% | 376 |
| PDX SEA Portland International Airport – Seattle–Tacoma International Airport | 208 | 10.3 min | 84.6% | 39 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 65.4% | 0 |
| November 2024 | 29 | 29 | 69.0% | 0 |
| December 2024 | 47 | 47 | 61.7% | 0 |
| January 2025 | 30 | 30 | 60.0% | 0 |
| February 2025 | 26 | 26 | 73.1% | 0 |
| March 2025 | 26 | 26 | 80.8% | 0 |
| April 2025 | 14 | 14 | 92.9% | 0 |
| May 2025 | 44 | 44 | 81.8% | 0 |
| June 2025 | 52 | 52 | 73.1% | 0 |
| July 2025 | 54 | 54 | 77.8% | 0 |
| August 2025 | 42 | 42 | 66.7% | 0 |
| September 2025 | 26 | 26 | 88.5% | 0 |
| October 2025 | 39 | 38 | 57.9% | 1 |
| November 2025 | 58 | 56 | 69.6% | 2 |
| December 2025 | 38 | 38 | 68.4% | 0 |
| January 2026 | 24 | 22 | 81.8% | 2 |
| February 2026 | 34 | 34 | 79.4% | 0 |
| March 2026 | 49 | 49 | 73.5% | 0 |
| April 2026 | 37 | 37 | 100.0% | 0 |
| May 2026 | 40 | 40 | 42.5% | 0 |
| June 2026 | 59 | 59 | 76.3% | 0 |
| July 2026 | 62 | 61 | 75.4% | 1 |