WN3931
WN3931 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Las Vegas to Burbank. Of 488 departures recorded from October 2024 to July 2026, 73.8% left on time, according to the US BTS.
- On-time departures73.8%of 488 flights
- Average delay17.2 min
- July 202651▲ 121.7%vs July 2025
- Cancelled0.8%
- Legs flown under this number27
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 17 | 1 | ▼ 94.1% |
| February | 17 | 3 | ▼ 82.4% |
| March | 37 | – | – |
| April | 49 | 24 | ▼ 51.0% |
| May | 54 | 31 | ▼ 42.6% |
| June | 24 | 50 | ▲ 108.3% |
| July | 23 | 51 | ▲ 121.7% |
| August | 17 | – | – |
| September | 17 | – | – |
| October | 22 | – | in progress |
| November | 13 | – | – |
| December | 4 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 94.1% | 100.0% | ▲ 6.2% |
| February | 82.4% | 100.0% | ▲ 21.4% |
| March | 67.6% | – | – |
| April | 73.5% | 91.7% | ▲ 24.8% |
| May | 66.7% | 74.2% | ▲ 11.3% |
| June | 54.6% | 80.0% | ▲ 46.7% |
| July | 36.4% | 86.3% | ▲ 137.3% |
| August | 35.3% | – | – |
| September | 64.7% | – | – |
| October | 100.0% | – | in progress |
| November | 76.9% | – | – |
| December | 100.0% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | – | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | 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 99.2% 484
- Cancelled 0.8% 4
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| AUS TUL Austin Bergstrom International Airport – Tulsa International Airport | 687 | 11.4 min | 72.0% | 50 |
| LAS BUR Harry Reid International Airport – Hollywood Burbank/Bob Hope Airport | 359 | 4.0 min | 88.0% | 50 |
| BWI ATL Baltimore/Washington International Thurgood Marshall Airport – Hartsfield Jackson Atlanta International Airport | 928 | 15.4 min | 88.0% | 50 |
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | 69.3 min | 38.5% | 42 |
| ATL MCI Hartsfield Jackson Atlanta International Airport – Kansas City International Airport | 1,114 | 6.0 min | 88.2% | 34 |
| MDW CHS Chicago Midway International Airport – Charleston International Airport | 1,200 | 17.1 min | 72.7% | 33 |
| TUL DEN Tulsa International Airport – Denver International Airport | 870 | 21.1 min | 56.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 29 | 29 | 69.0% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 2 | 2 | 100.0% | 0 |
| January 2025 | 17 | 17 | 94.1% | 0 |
| February 2025 | 17 | 17 | 82.4% | 0 |
| March 2025 | 37 | 37 | 67.6% | 0 |
| April 2025 | 49 | 49 | 73.5% | 0 |
| May 2025 | 54 | 54 | 66.7% | 0 |
| June 2025 | 24 | 22 | 54.6% | 2 |
| July 2025 | 23 | 22 | 36.4% | 1 |
| August 2025 | 17 | 17 | 35.3% | 0 |
| September 2025 | 17 | 17 | 64.7% | 0 |
| October 2025 | 22 | 21 | 100.0% | 1 |
| November 2025 | 13 | 13 | 76.9% | 0 |
| December 2025 | 4 | 4 | 100.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| February 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 24 | 24 | 91.7% | 0 |
| May 2026 | 31 | 31 | 74.2% | 0 |
| June 2026 | 50 | 50 | 80.0% | 0 |
| July 2026 | 51 | 51 | 86.3% | 0 |