WN4881
WN4881 (Southwest Airlines) is a multi-stop service on 10 routes, busiest Las Vegas to Milwaukee. Of 116 departures recorded from October 2024 to July 2026, 73.9% left on time, according to the US BTS.
- On-time departures73.9%of 116 flights
- Average delay11.3 min
- July 202621
- Cancelled0.9%
- Legs flown under this number10
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 22 | – | – |
| February | 24 | 14 | ▼ 41.7% |
| March | 4 | 2 | ▼ 50.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | 20 | – |
| July | – | 21 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
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 periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 90.9% | – | – |
| February | 79.2% | 85.7% | ▲ 8.3% |
| March | 100.0% | 50.0% | ▼ 50.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | 42.1% | – |
| July | – | 66.7% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0.0% | – | – |
| December | 50.0% | – | – |
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 periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 1 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | 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 99.1% 115
- Cancelled 0.9% 1
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAS MKE Harry Reid International Airport – General Mitchell International Airport | 2,447 | 6.9 min | 86.3% | 51 |
| AUS ABQ Austin Bergstrom International Airport – Albuquerque International Sunport | 995 | 18.8 min | 55.0% | 41 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 4 | 4 | 100.0% | 0 |
| November 2024 | 1 | 1 | 100.0% | 0 |
| December 2024 | 1 | 1 | 100.0% | 0 |
| January 2025 | 22 | 22 | 90.9% | 0 |
| February 2025 | 24 | 24 | 79.2% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 1 | 1 | 0.0% | 0 |
| December 2025 | 2 | 2 | 50.0% | 0 |
| February 2026 | 14 | 14 | 85.7% | 0 |
| March 2026 | 2 | 2 | 50.0% | 0 |
| June 2026 | 20 | 19 | 42.1% | 1 |
| July 2026 | 21 | 21 | 66.7% | 0 |