OO4179
OO4179 (SkyWest Airlines) is a multi-stop service on 9 routes, busiest Las Vegas to Santa Ana. Of 682 departures recorded from October 2024 to July 2026, 83.9% left on time, according to the US BTS.
- On-time departures83.9%of 682 flights
- Average delay12.0 min
- July 202662▲ 121.4%vs July 2025
- Cancelled0.7%
- Legs flown under this number9
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 60 | 27 | ▼ 55.0% |
| February | 56 | 45 | ▼ 19.6% |
| March | 39 | 20 | ▼ 48.7% |
| April | 30 | 40 | ▲ 33.3% |
| May | 56 | 62 | ▲ 10.7% |
| June | 37 | 60 | ▲ 62.2% |
| July | 28 | 62 | ▲ 121.4% |
| August | 9 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 22 | – | – |
| December | 19 | – | – |
| Year to date (Jan–Jul) | 306 | 316 | ▲ 3.3% |
according to the US BTS · October 2024 → July 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 84.5% | 59.3% | ▼ 29.9% |
| February | 78.6% | 73.3% | ▼ 6.7% |
| March | 84.6% | 65.0% | ▼ 23.2% |
| April | 90.0% | 92.5% | ▲ 2.8% |
| May | 91.1% | 85.3% | ▼ 6.4% |
| June | 83.8% | 87.9% | ▲ 5.0% |
| July | 78.6% | 93.6% | ▲ 19.1% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 90.9% | – | – |
| December | 68.4% | – | – |
| Year-to-date average (Jan–Jul) | 84.4% | 79.5% | ▼ 5.8% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 2 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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 99.3% 677
- Cancelled 0.7% 5
Share of all recorded flights in the period, all legs. · Oct 26, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAS SNA Harry Reid International Airport – John Wayne Orange County International Airport | 365 | 9.3 min | 86.2% | 321 |
| SNA LAS John Wayne Orange County International Airport – Harry Reid International Airport | 365 | 5.5 min | 87.6% | 213 |
| DTW SBN Detroit Metropolitan Wayne County Airport – South Bend International Airport | 251 | 35.6 min | 64.5% | 62 |
| DEN AUS Denver International Airport – Austin Bergstrom International Airport | 1,249 | 25.2 min | 80.5% | 41 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 4 | 4 | 75.0% | 0 |
| January 2025 | 60 | 58 | 84.5% | 2 |
| February 2025 | 56 | 56 | 78.6% | 0 |
| March 2025 | 39 | 39 | 84.6% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 56 | 56 | 91.1% | 0 |
| June 2025 | 37 | 37 | 83.8% | 0 |
| July 2025 | 28 | 28 | 78.6% | 0 |
| August 2025 | 9 | 9 | 100.0% | 0 |
| November 2025 | 22 | 22 | 90.9% | 0 |
| December 2025 | 19 | 19 | 68.4% | 0 |
| January 2026 | 27 | 27 | 59.3% | 0 |
| February 2026 | 45 | 45 | 73.3% | 0 |
| March 2026 | 20 | 20 | 65.0% | 0 |
| April 2026 | 40 | 40 | 92.5% | 0 |
| May 2026 | 62 | 61 | 85.3% | 1 |
| June 2026 | 60 | 58 | 87.9% | 2 |
| July 2026 | 62 | 62 | 93.6% | 0 |