WN1531
WN1531 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Burbank to Oakland. Of 662 departures recorded from October 2024 to July 2026, 76.3% left on time, according to the US BTS.
- On-time departures76.3%of 662 flights
- Average delay12.0 min
- July 202613▼ 68.3%vs July 2025
- Cancelled0.2%
- Legs flown under this number36
according to the US BTS · Oct 13, 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 | 32 | 30 | ▼ 6.3% |
| February | 44 | 27 | ▼ 38.6% |
| March | 33 | 31 | ▼ 6.1% |
| April | 33 | 15 | ▼ 54.5% |
| May | 34 | 17 | ▼ 50.0% |
| June | 37 | 11 | ▼ 70.3% |
| July | 41 | 13 | ▼ 68.3% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 45 | – | – |
| December | 42 | – | – |
| Year to date (Jan–Jul) | 254 | 144 | ▼ 43.3% |
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 | 87.1% | 90.0% | ▲ 3.3% |
| February | 63.6% | 51.9% | ▼ 18.5% |
| March | 81.8% | 77.4% | ▼ 5.4% |
| April | 84.9% | 100.0% | ▲ 17.9% |
| May | 79.4% | 88.2% | ▲ 11.1% |
| June | 73.0% | 27.3% | ▼ 62.6% |
| July | 68.3% | 53.9% | ▼ 21.1% |
| August | 62.1% | – | – |
| September | 73.3% | – | – |
| October | 92.6% | – | in progress |
| November | 68.9% | – | – |
| December | 71.4% | – | – |
| Year-to-date average (Jan–Jul) | 76.9% | 69.8% | ▼ 9.2% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| 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) | 1 | 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 99.8% 661
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| BUR OAK Hollywood Burbank/Bob Hope Airport – Oakland San Francisco Bay Airport | 523 | 18.2 min | 73.8% | 61 |
| MCO MCI Orlando International Airport – Kansas City International Airport | 1,726 | 3.5 min | 86.2% | 58 |
| DEN MKE Denver International Airport – General Mitchell International Airport | 1,438 | 14.0 min | 69.8% | 53 |
| SAT HOU San Antonio International Airport – William P. Hobby Airport | 309 | 6.4 min | 83.7% | 50 |
| ELP SAT El Paso International Airport – San Antonio International Airport | 797 | 0.1 min | 87.2% | 47 |
| LBB DAL Lubbock Preston Smith International Airport – Dallas Love Field | 472 | 12.8 min | 79.6% | 44 |
| BUR DEN Hollywood Burbank/Bob Hope Airport – Denver International Airport | 1,366 | 11.5 min | 78.8% | 33 |
| TPA BWI Tampa International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,358 | 11.2 min | 81.8% | 33 |
| DAL TUL Dallas Love Field – Tulsa International Airport | 383 | 17.0 min | 70.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 28 | 28 | 85.7% | 0 |
| November 2024 | 31 | 31 | 83.9% | 0 |
| December 2024 | 32 | 32 | 96.9% | 0 |
| January 2025 | 32 | 31 | 87.1% | 1 |
| February 2025 | 44 | 44 | 63.6% | 0 |
| March 2025 | 33 | 33 | 81.8% | 0 |
| April 2025 | 33 | 33 | 84.9% | 0 |
| May 2025 | 34 | 34 | 79.4% | 0 |
| June 2025 | 37 | 37 | 73.0% | 0 |
| July 2025 | 41 | 41 | 68.3% | 0 |
| August 2025 | 29 | 29 | 62.1% | 0 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 27 | 27 | 92.6% | 0 |
| November 2025 | 45 | 45 | 68.9% | 0 |
| December 2025 | 42 | 42 | 71.4% | 0 |
| January 2026 | 30 | 30 | 90.0% | 0 |
| February 2026 | 27 | 27 | 51.9% | 0 |
| March 2026 | 31 | 31 | 77.4% | 0 |
| April 2026 | 15 | 15 | 100.0% | 0 |
| May 2026 | 17 | 17 | 88.2% | 0 |
| June 2026 | 11 | 11 | 27.3% | 0 |
| July 2026 | 13 | 13 | 53.9% | 0 |