WN4588
WN4588 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Santa Ana to Las Vegas. Of 285 departures recorded from October 2024 to July 2026, 59.9% left on time, according to the US BTS.
- On-time departures59.9%of 285 flights
- Average delay24.3 min
- July 202616▼ 33.3%vs July 2025
- Cancelled0.4%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | – | – |
| February | 25 | – | – |
| March | 29 | 46 | ▲ 58.6% |
| April | 7 | 13 | ▲ 85.7% |
| May | – | 5 | – |
| June | 24 | 15 | ▼ 37.5% |
| July | 24 | 16 | ▼ 33.3% |
| August | 5 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | – | – |
| February | 72.0% | – | – |
| March | 79.3% | 43.5% | ▼ 45.2% |
| April | 57.1% | 84.6% | ▲ 48.1% |
| May | – | 100.0% | – |
| June | 91.7% | 40.0% | ▼ 56.4% |
| July | 50.0% | 18.8% | ▼ 62.5% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 69.2% | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 99.6% 284
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| SNA LAS John Wayne Orange County International Airport – Harry Reid International Airport | 365 | 16.3 min | 72.7% | 44 |
| BNA SAN Nashville International Airport – San Diego International Airport | 2,812 | 8.4 min | 72.7% | 33 |
| MCO CMH Orlando International Airport – John Glenn Columbus International Airport | 1,295 | 47.1 min | 29.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 83.3% | 0 |
| November 2024 | 8 | 8 | 50.0% | 0 |
| December 2024 | 19 | 18 | 22.2% | 1 |
| January 2025 | 5 | 5 | 0.0% | 0 |
| February 2025 | 25 | 25 | 72.0% | 0 |
| March 2025 | 29 | 29 | 79.3% | 0 |
| April 2025 | 7 | 7 | 57.1% | 0 |
| June 2025 | 24 | 24 | 91.7% | 0 |
| July 2025 | 24 | 24 | 50.0% | 0 |
| August 2025 | 5 | 5 | 100.0% | 0 |
| October 2025 | 26 | 26 | 69.2% | 0 |
| March 2026 | 46 | 46 | 43.5% | 0 |
| April 2026 | 13 | 13 | 84.6% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 15 | 15 | 40.0% | 0 |
| July 2026 | 16 | 16 | 18.8% | 0 |