OO4123
OO4123 (SkyWest Airlines) is a multi-stop service on 8 routes, busiest San Jose to Los Angeles. Of 1,016 departures recorded from October 2024 to July 2026, 91.2% left on time, according to the US BTS.
- On-time departures91.2%of 1,016 flights
- Average delay0.2 min
- July 202654▲ 17.4%vs July 2025
- Cancelled1.0%
- Legs flown under this number8
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 | 55 | 61 | ▲ 10.9% |
| February | 48 | 22 | ▼ 54.2% |
| March | 58 | 24 | ▼ 58.6% |
| April | 60 | 44 | ▼ 26.7% |
| May | 62 | 30 | ▼ 51.6% |
| June | 50 | 47 | ▼ 6.0% |
| July | 46 | 54 | ▲ 17.4% |
| August | 40 | – | – |
| September | 34 | – | – |
| October | 49 | – | in progress |
| November | 46 | – | – |
| December | 59 | – | – |
| Year to date (Jan–Jul) | 379 | 282 | ▼ 25.6% |
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 | 87.3% | 91.8% | ▲ 5.2% |
| February | 97.9% | 100.0% | ▲ 2.1% |
| March | 96.6% | 66.7% | ▼ 30.9% |
| April | 93.3% | 72.5% | ▼ 22.3% |
| May | 95.2% | 76.7% | ▼ 19.4% |
| June | 96.0% | 100.0% | ▲ 4.2% |
| July | 91.3% | 74.1% | ▼ 18.9% |
| August | 97.5% | – | – |
| September | 88.2% | – | – |
| October | 98.0% | – | in progress |
| November | 97.5% | – | – |
| December | 93.2% | – | – |
| Year-to-date average (Jan–Jul) | 93.9% | 83.1% | ▼ 11.5% |
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 | 0 | – |
| April | 0 | 4 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 6 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 4 |
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 99.0% 1,006
- Cancelled 1.0% 10
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SJC LAX Mineta San Jose International Airport – Los Angeles International Airport | 496 | -2.6 min | 94.4% | 410 |
| LAX SJC Los Angeles International Airport – Mineta San Jose International Airport | 496 | -2.3 min | 93.6% | 407 |
| SYR DTW Syracuse Hancock International Airport – Detroit Metropolitan Wayne County Airport | 601 | 7.9 min | 85.4% | 48 |
| DTW SYR Detroit Metropolitan Wayne County Airport – Syracuse Hancock International Airport | 601 | 11.9 min | 85.4% | 48 |
| AUS DEN Austin Bergstrom International Airport – Denver International Airport | 1,249 | 14.3 min | 75.0% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 28 | 28 | 92.9% | 0 |
| November 2024 | 40 | 40 | 100.0% | 0 |
| December 2024 | 59 | 59 | 86.4% | 0 |
| January 2025 | 55 | 55 | 87.3% | 0 |
| February 2025 | 48 | 48 | 97.9% | 0 |
| March 2025 | 58 | 58 | 96.6% | 0 |
| April 2025 | 60 | 60 | 93.3% | 0 |
| May 2025 | 62 | 62 | 95.2% | 0 |
| June 2025 | 50 | 50 | 96.0% | 0 |
| July 2025 | 46 | 46 | 91.3% | 0 |
| August 2025 | 40 | 40 | 97.5% | 0 |
| September 2025 | 34 | 34 | 88.2% | 0 |
| October 2025 | 49 | 49 | 98.0% | 0 |
| November 2025 | 46 | 40 | 97.5% | 6 |
| December 2025 | 59 | 59 | 93.2% | 0 |
| January 2026 | 61 | 61 | 91.8% | 0 |
| February 2026 | 22 | 22 | 100.0% | 0 |
| March 2026 | 24 | 24 | 66.7% | 0 |
| April 2026 | 44 | 40 | 72.5% | 4 |
| May 2026 | 30 | 30 | 76.7% | 0 |
| June 2026 | 47 | 47 | 100.0% | 0 |
| July 2026 | 54 | 54 | 74.1% | 0 |