WN1252
WN1252 (Southwest Airlines) is a multi-stop service on 37 routes, busiest San Jose to Burbank. Of 705 departures recorded from October 2024 to July 2026, 76.5% left on time, according to the US BTS.
- On-time departures76.5%of 705 flights
- Average delay11.6 min
- July 202616▼ 38.5%vs July 2025
- Cancelled0.6%
- Legs flown under this number37
according to the US BTS · Oct 12, 2024 → Jul 29, 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 | 31 | 52 | ▲ 67.7% |
| February | 28 | 42 | ▲ 50.0% |
| March | 57 | 34 | ▼ 40.4% |
| April | 43 | 30 | ▼ 30.2% |
| May | 39 | 31 | ▼ 20.5% |
| June | 27 | 18 | ▼ 33.3% |
| July | 26 | 16 | ▼ 38.5% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 33 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 251 | 223 | ▼ 11.2% |
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 | 83.9% | 86.5% | ▲ 3.2% |
| February | 85.7% | 95.2% | ▲ 11.1% |
| March | 81.8% | 67.7% | ▼ 17.3% |
| April | 86.1% | 83.3% | ▼ 3.2% |
| May | 84.6% | 61.3% | ▼ 27.6% |
| June | 59.3% | 72.2% | ▲ 21.9% |
| July | 65.4% | 81.3% | ▲ 24.3% |
| August | 70.0% | – | – |
| September | 86.7% | – | – |
| October | 63.6% | – | in progress |
| November | 43.3% | – | – |
| December | 58.1% | – | – |
| Year-to-date average (Jan–Jul) | 78.1% | 78.2% | ▲ 0.1% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 2 | 0 | ▼ 100.0% |
| 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) | 2 | 0 | ▼ 100.0% |
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 99.4% 701
- Cancelled 0.6% 4
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SJC BUR Mineta San Jose International Airport – Hollywood Burbank/Bob Hope Airport | 477 | 2.6 min | 88.1% | 103 |
| LGA HOU LaGuardia Airport – William P. Hobby Airport | 2,295 | 30.8 min | 50.0% | 60 |
| LAX BWI Los Angeles International Airport – Baltimore/Washington International Thurgood Marshall Airport | 3,740 | 9.5 min | 82.5% | 57 |
| SMF PSP Sacramento International Airport – Palm Springs International Airport | 707 | 5.2 min | 92.7% | 55 |
| OAK SEA Oakland San Francisco Bay Airport – Seattle–Tacoma International Airport | 1,082 | -1.2 min | 97.6% | 42 |
| PSP LAS Palm Springs International Airport – Harry Reid International Airport | 279 | 14.7 min | 88.9% | 36 |
| SFO SAN San Francisco International Airport – San Diego International Airport | 719 | 11.8 min | 76.5% | 34 |
| BNA MDW Nashville International Airport – Chicago Midway International Airport | 636 | 15.8 min | 67.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 72.2% | 0 |
| November 2024 | 29 | 28 | 92.9% | 1 |
| December 2024 | 30 | 29 | 75.9% | 1 |
| January 2025 | 31 | 31 | 83.9% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 57 | 55 | 81.8% | 2 |
| April 2025 | 43 | 43 | 86.1% | 0 |
| May 2025 | 39 | 39 | 84.6% | 0 |
| June 2025 | 27 | 27 | 59.3% | 0 |
| July 2025 | 26 | 26 | 65.4% | 0 |
| August 2025 | 30 | 30 | 70.0% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 33 | 33 | 63.6% | 0 |
| November 2025 | 30 | 30 | 43.3% | 0 |
| December 2025 | 31 | 31 | 58.1% | 0 |
| January 2026 | 52 | 52 | 86.5% | 0 |
| February 2026 | 42 | 42 | 95.2% | 0 |
| March 2026 | 34 | 34 | 67.7% | 0 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 31 | 31 | 61.3% | 0 |
| June 2026 | 18 | 18 | 72.2% | 0 |
| July 2026 | 16 | 16 | 81.3% | 0 |