OO5440
OO5440 (SkyWest Airlines) is a multi-stop service on 3 routes, busiest San Francisco to Santa Ana. Of 637 departures recorded from October 2024 to July 2026, 78.1% left on time, according to the US BTS.
- On-time departures78.1%of 637 flights
- Average delay11.0 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number3
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 | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 29 | 27 | ▼ 6.9% |
| April | 16 | 30 | ▲ 87.5% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 196 | 208 | ▲ 6.1% |
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 | 93.6% | 77.4% | ▼ 17.2% |
| February | 85.7% | 71.4% | ▼ 16.7% |
| March | 75.9% | 77.8% | ▲ 2.5% |
| April | 81.3% | 82.8% | ▲ 1.9% |
| May | 89.7% | 43.3% | ▼ 51.7% |
| June | 73.3% | 50.0% | ▼ 31.8% |
| July | 90.3% | 83.9% | ▼ 7.1% |
| August | 87.1% | – | – |
| September | 96.7% | – | – |
| October | 83.9% | – | in progress |
| November | 72.4% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 84.2% | 69.5% | ▼ 17.5% |
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 | 1 | – |
| May | 2 | 1 | ▼ 50.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.1% 631
- Cancelled 0.9% 6
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO SNA San Francisco International Airport – John Wayne Orange County International Airport | 598 | 11.1 min | 77.7% | 600 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 75.0% | 0 |
| November 2024 | 30 | 28 | 67.9% | 2 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 29 | 29 | 75.9% | 0 |
| April 2025 | 16 | 16 | 81.3% | 0 |
| May 2025 | 31 | 29 | 89.7% | 2 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 31 | 31 | 90.3% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 29 | 29 | 72.4% | 0 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 31 | 31 | 77.4% | 0 |
| February 2026 | 28 | 28 | 71.4% | 0 |
| March 2026 | 27 | 27 | 77.8% | 0 |
| April 2026 | 30 | 29 | 82.8% | 1 |
| May 2026 | 31 | 30 | 43.3% | 1 |
| June 2026 | 30 | 30 | 50.0% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |