WN458
WN458 (Southwest Airlines) is a multi-stop service on 40 routes, busiest San Francisco to Los Angeles. Of 850 departures recorded from October 2024 to July 2026, 75.1% left on time, according to the US BTS.
- On-time departures75.1%of 850 flights
- Average delay13.1 min
- July 202631▼ 50.8%vs July 2025
- Cancelled0.2%
- Legs flown under this number40
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 57 | 14 | ▼ 75.4% |
| February | 37 | 19 | ▼ 48.6% |
| March | 25 | 65 | ▲ 160.0% |
| April | 26 | 39 | ▲ 50.0% |
| May | 30 | 32 | ▲ 6.7% |
| June | 46 | 30 | ▼ 34.8% |
| July | 63 | 31 | ▼ 50.8% |
| August | 39 | – | – |
| September | 43 | – | – |
| October | 31 | – | in progress |
| November | 32 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 284 | 230 | ▼ 19.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 87.7% | 92.3% | ▲ 5.2% |
| February | 83.8% | 100.0% | ▲ 19.4% |
| March | 88.0% | 83.1% | ▼ 5.6% |
| April | 76.9% | 74.4% | ▼ 3.3% |
| May | 93.3% | 71.9% | ▼ 23.0% |
| June | 67.4% | 43.3% | ▼ 35.7% |
| July | 58.7% | 38.7% | ▼ 34.1% |
| August | 66.7% | – | – |
| September | 65.1% | – | – |
| October | 83.9% | – | in progress |
| November | 68.8% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 79.4% | 72.0% | ▼ 9.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 2 |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.8% 848
- Cancelled 0.2% 2
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 6.7 min | 89.9% | 79 |
| MDW MCI Chicago Midway International Airport – Kansas City International Airport | 650 | 12.6 min | 67.1% | 73 |
| STL LIT St. Louis Lambert International Airport – Bill & Hillary Clinton National Airport/Adams Field | 477 | 17.6 min | 67.2% | 64 |
| BWI TPA Baltimore/Washington International Thurgood Marshall Airport – Tampa International Airport | 1,358 | 1.0 min | 91.7% | 48 |
| TPA PIT Tampa International Airport – Pittsburgh International Airport | 1,408 | 26.7 min | 65.1% | 43 |
| TPA SAT Tampa International Airport – San Antonio International Airport | 1,562 | 15.2 min | 71.4% | 42 |
| LAX ABQ Los Angeles International Airport – Albuquerque International Sunport | 1,088 | -3.4 min | 97.6% | 42 |
| SAT LAS San Antonio International Airport – Harry Reid International Airport | 1,718 | 20.6 min | 59.0% | 39 |
| STL BOS St. Louis Lambert International Airport – Boston Logan International Airport | 1,680 | 0.5 min | 96.4% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 100.0% | 0 |
| November 2024 | 80 | 80 | 85.0% | 0 |
| December 2024 | 64 | 64 | 81.3% | 0 |
| January 2025 | 57 | 57 | 87.7% | 0 |
| February 2025 | 37 | 37 | 83.8% | 0 |
| March 2025 | 25 | 25 | 88.0% | 0 |
| April 2025 | 26 | 26 | 76.9% | 0 |
| May 2025 | 30 | 30 | 93.3% | 0 |
| June 2025 | 46 | 46 | 67.4% | 0 |
| July 2025 | 63 | 63 | 58.7% | 0 |
| August 2025 | 39 | 39 | 66.7% | 0 |
| September 2025 | 43 | 43 | 65.1% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 32 | 32 | 68.8% | 0 |
| December 2025 | 33 | 33 | 63.6% | 0 |
| January 2026 | 14 | 13 | 92.3% | 1 |
| February 2026 | 19 | 18 | 100.0% | 1 |
| March 2026 | 65 | 65 | 83.1% | 0 |
| April 2026 | 39 | 39 | 74.4% | 0 |
| May 2026 | 32 | 32 | 71.9% | 0 |
| June 2026 | 30 | 30 | 43.3% | 0 |
| July 2026 | 31 | 31 | 38.7% | 0 |