WN4590
WN4590 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Santa Ana to Oakland. Of 326 departures recorded from October 2024 to July 2026, 75.9% left on time, according to the US BTS.
- On-time departures75.9%of 326 flights
- Average delay10.6 min
- July 202631▲ 3.3%vs July 2025
- Cancelled1.8%
- Legs flown under this number19
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 | 2 | 1 | ▼ 50.0% |
| February | – | – | – |
| March | 4 | 22 | ▲ 450.0% |
| April | 16 | 28 | ▲ 75.0% |
| May | 23 | 31 | ▲ 34.8% |
| June | 28 | 30 | ▲ 7.1% |
| July | 30 | 31 | ▲ 3.3% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | 18 | – | in progress |
| November | 3 | – | – |
| December | 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 | 100.0% | 100.0% | 0.0% |
| February | – | – | – |
| March | 100.0% | 77.3% | ▼ 22.7% |
| April | 81.3% | 96.4% | ▲ 18.7% |
| May | 63.6% | 90.3% | ▲ 41.9% |
| June | 68.0% | 73.3% | ▲ 7.8% |
| July | 67.9% | 74.2% | ▲ 9.3% |
| August | 57.1% | – | – |
| September | 100.0% | – | – |
| October | 66.7% | – | in progress |
| November | 100.0% | – | – |
| December | 0.0% | – | – |
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 | 0 | 0 | – |
| February | – | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 3 | 0 | ▼ 100.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 98.2% 320
- Cancelled 1.8% 6
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| SNA OAK John Wayne Orange County International Airport – Oakland San Francisco Bay Airport | 597 | 12.8 min | 65.5% | 60 |
| TUL BNA Tulsa International Airport – Nashville International Airport | 826 | 4.1 min | 94.8% | 58 |
| LAS MCO Harry Reid International Airport – Orlando International Airport | 3,276 | 10.7 min | 72.4% | 58 |
| BNA JAX Nashville International Airport – Jacksonville International Airport | 779 | 19.2 min | 71.8% | 40 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 22 | 22 | 63.6% | 0 |
| November 2024 | 16 | 16 | 93.8% | 0 |
| December 2024 | 7 | 7 | 57.1% | 0 |
| January 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 16 | 16 | 81.3% | 0 |
| May 2025 | 23 | 22 | 63.6% | 1 |
| June 2025 | 28 | 25 | 68.0% | 3 |
| July 2025 | 30 | 28 | 67.9% | 2 |
| August 2025 | 7 | 7 | 57.1% | 0 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 18 | 18 | 66.7% | 0 |
| November 2025 | 3 | 3 | 100.0% | 0 |
| December 2025 | 3 | 3 | 0.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 22 | 22 | 77.3% | 0 |
| April 2026 | 28 | 28 | 96.4% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 31 | 31 | 74.2% | 0 |