WN1604
WN1604 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Los Angeles to San Jose. Of 700 departures recorded from October 2024 to July 2026, 73.2% left on time, according to the US BTS.
- On-time departures73.2%of 700 flights
- Average delay19.0 min
- July 202631▲ 47.6%vs July 2025
- Cancelled0.9%
- Legs flown under this number26
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 | 28 | 50 | ▲ 78.6% |
| February | 18 | 37 | ▲ 105.6% |
| March | 30 | 26 | ▼ 13.3% |
| April | 30 | 46 | ▲ 53.3% |
| May | 31 | 52 | ▲ 67.7% |
| June | 24 | 32 | ▲ 33.3% |
| July | 21 | 31 | ▲ 47.6% |
| August | 32 | – | – |
| September | 31 | – | – |
| October | 32 | – | in progress |
| November | 32 | – | – |
| December | 40 | – | – |
| Year to date (Jan–Jul) | 182 | 274 | ▲ 50.5% |
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 | 92.9% | 91.8% | ▼ 1.1% |
| February | 94.4% | 86.5% | ▼ 8.4% |
| March | 93.1% | 60.0% | ▼ 35.6% |
| April | 83.3% | 41.3% | ▼ 50.4% |
| May | 96.8% | 34.6% | ▼ 64.2% |
| June | 43.5% | 37.5% | ▼ 13.8% |
| July | 71.4% | 20.0% | ▼ 72.0% |
| August | 87.5% | – | – |
| September | 96.8% | – | – |
| October | 96.9% | – | in progress |
| November | 90.6% | – | – |
| December | 76.9% | – | – |
| Year-to-date average (Jan–Jul) | 82.2% | 53.1% | ▼ 35.4% |
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 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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 99.1% 694
- Cancelled 0.9% 6
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 |
|---|---|---|---|---|
| LAX SJC Los Angeles International Airport – Mineta San Jose International Airport | 496 | 5.6 min | 87.9% | 99 |
| SAT TPA San Antonio International Airport – Tampa International Airport | 1,562 | -0.7 min | 94.8% | 58 |
| CMH BWI John Glenn Columbus International Airport – Baltimore/Washington International Thurgood Marshall Airport | 541 | 14.6 min | 87.7% | 58 |
| DEN MDW Denver International Airport – Chicago Midway International Airport | 1,438 | 56.3 min | 18.0% | 50 |
| MSY BNA Louis Armstrong New Orleans International Airport – Nashville International Airport | 759 | 39.0 min | 46.9% | 49 |
| HOU DCA William P. Hobby Airport – Ronald Reagan Washington National Airport | 1,959 | 48.3 min | 52.3% | 45 |
| SJC BUR Mineta San Jose International Airport – Hollywood Burbank/Bob Hope Airport | 477 | -1.2 min | 95.4% | 43 |
| ELP DAL El Paso International Airport – Dallas Love Field | 902 | 14.6 min | 84.4% | 33 |
| BUR SMF Hollywood Burbank/Bob Hope Airport – Sacramento International Airport | 577 | -2.8 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 76.2% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 28 | 28 | 78.6% | 0 |
| January 2025 | 28 | 28 | 92.9% | 0 |
| February 2025 | 18 | 18 | 94.4% | 0 |
| March 2025 | 30 | 29 | 93.1% | 1 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 24 | 23 | 43.5% | 1 |
| July 2025 | 21 | 21 | 71.4% | 0 |
| August 2025 | 32 | 32 | 87.5% | 0 |
| September 2025 | 31 | 31 | 96.8% | 0 |
| October 2025 | 32 | 32 | 96.9% | 0 |
| November 2025 | 32 | 32 | 90.6% | 0 |
| December 2025 | 40 | 39 | 76.9% | 1 |
| January 2026 | 50 | 49 | 91.8% | 1 |
| February 2026 | 37 | 37 | 86.5% | 0 |
| March 2026 | 26 | 25 | 60.0% | 1 |
| April 2026 | 46 | 46 | 41.3% | 0 |
| May 2026 | 52 | 52 | 34.6% | 0 |
| June 2026 | 32 | 32 | 37.5% | 0 |
| July 2026 | 31 | 30 | 20.0% | 1 |