WN4742
WN4742 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Las Vegas to Seattle. Of 267 departures recorded from October 2024 to July 2026, 73.3% left on time, according to the US BTS.
- On-time departures73.3%of 267 flights
- Average delay15.1 min
- July 20266▼ 87.2%vs July 2025
- Cancelled0.4%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 29 | ▲ 625.0% |
| February | 2 | 25 | ▲ 1,150.0% |
| March | 12 | 4 | ▼ 66.7% |
| April | 3 | – | – |
| May | – | – | – |
| June | 42 | 14 | ▼ 66.7% |
| July | 47 | 6 | ▼ 87.2% |
| August | 7 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 4 | – | – |
| December | 12 | – | – |
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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 96.6% | ▼ 3.5% |
| February | 100.0% | 84.0% | ▼ 16.0% |
| March | 83.3% | 75.0% | ▼ 10.0% |
| April | 100.0% | – | – |
| May | – | – | – |
| June | 57.1% | 64.3% | ▲ 12.5% |
| July | 55.3% | 66.7% | ▲ 20.5% |
| August | 14.3% | – | – |
| September | – | – | – |
| October | 92.3% | – | in progress |
| November | 100.0% | – | – |
| December | 66.7% | – | – |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | – | – |
| May | – | – | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | 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 99.6% 266
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 26, 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 SEA Harry Reid International Airport – Seattle–Tacoma International Airport | 1,395 | 35.3 min | 46.7% | 60 |
| LAS SBA Harry Reid International Airport – Santa Barbara Municipal Airport | 464 | -0.3 min | 93.6% | 47 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 70.0% | 0 |
| November 2024 | 14 | 13 | 84.6% | 1 |
| December 2024 | 6 | 6 | 100.0% | 0 |
| January 2025 | 4 | 4 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 12 | 12 | 83.3% | 0 |
| April 2025 | 3 | 3 | 100.0% | 0 |
| June 2025 | 42 | 42 | 57.1% | 0 |
| July 2025 | 47 | 47 | 55.3% | 0 |
| August 2025 | 7 | 7 | 14.3% | 0 |
| October 2025 | 26 | 26 | 92.3% | 0 |
| November 2025 | 4 | 4 | 100.0% | 0 |
| December 2025 | 12 | 12 | 66.7% | 0 |
| January 2026 | 29 | 29 | 96.6% | 0 |
| February 2026 | 25 | 25 | 84.0% | 0 |
| March 2026 | 4 | 4 | 75.0% | 0 |
| June 2026 | 14 | 14 | 64.3% | 0 |
| July 2026 | 6 | 6 | 66.7% | 0 |