WN4048
WN4048 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Las Vegas to Long Beach. Of 317 departures recorded from October 2024 to July 2026, 83.8% left on time, according to the US BTS.
- On-time departures83.8%of 317 flights
- Average delay7.5 min
- July 202627
- Cancelled0.6%
- 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 | 3 | 34 | ▲ 1,033.3% |
| February | 2 | 46 | ▲ 2,200.0% |
| March | 23 | 17 | ▼ 26.1% |
| April | 6 | 18 | ▲ 200.0% |
| May | 1 | 23 | ▲ 2,200.0% |
| June | – | 24 | – |
| July | – | 27 | – |
| August | – | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 16 | – | – |
| December | 13 | – | – |
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 | 33.3% | 93.8% | ▲ 181.3% |
| February | 100.0% | 65.2% | ▼ 34.8% |
| March | 65.2% | 64.7% | ▼ 0.8% |
| April | 83.3% | 94.4% | ▲ 13.3% |
| May | 0.0% | 91.3% | – |
| June | – | 95.8% | – |
| July | – | 96.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 75.0% | – | – |
| 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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| 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 99.4% 315
- Cancelled 0.6% 2
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAS LGB Harry Reid International Airport – Long Beach International Airport | 372 | 13.5 min | 81.1% | 53 |
| TPA STL Tampa International Airport – St. Louis Lambert International Airport | 1,400 | -2.7 min | 96.0% | 50 |
| RSW STL Southwest Florida International Airport – St. Louis Lambert International Airport | 1,578 | 0.6 min | 92.5% | 40 |
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | -6.0 min | 100.0% | 31 |
| PHX AUS Phoenix Sky Harbor International Airport – Austin Bergstrom International Airport | 1,401 | 6.1 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 100.0% | 0 |
| November 2024 | 5 | 5 | 80.0% | 0 |
| December 2024 | 11 | 11 | 54.6% | 0 |
| January 2025 | 3 | 3 | 33.3% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 23 | 23 | 65.2% | 0 |
| April 2025 | 6 | 6 | 83.3% | 0 |
| May 2025 | 1 | 1 | 0.0% | 0 |
| October 2025 | 30 | 30 | 100.0% | 0 |
| November 2025 | 16 | 16 | 75.0% | 0 |
| December 2025 | 13 | 13 | 100.0% | 0 |
| January 2026 | 34 | 32 | 93.8% | 2 |
| February 2026 | 46 | 46 | 65.2% | 0 |
| March 2026 | 17 | 17 | 64.7% | 0 |
| April 2026 | 18 | 18 | 94.4% | 0 |
| May 2026 | 23 | 23 | 91.3% | 0 |
| June 2026 | 24 | 24 | 95.8% | 0 |
| July 2026 | 27 | 27 | 96.3% | 0 |