WN4337
WN4337 (Southwest Airlines) is a multi-stop service on 23 routes, busiest El Paso to Dallas. Of 423 departures recorded from October 2024 to July 2026, 68.6% left on time, according to the US BTS.
- On-time departures68.6%of 423 flights
- Average delay19.6 min
- July 202631▲ 24.0%vs July 2025
- Cancelled1.4%
- Legs flown under this number23
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 3 | ▼ 88.0% |
| February | 17 | 1 | ▼ 94.1% |
| March | 15 | 4 | ▼ 73.3% |
| April | 34 | 1 | ▼ 97.1% |
| May | 39 | – | – |
| June | 30 | 27 | ▼ 10.0% |
| July | 25 | 31 | ▲ 24.0% |
| August | 5 | – | – |
| September | – | – | – |
| October | 29 | – | in progress |
| November | 9 | – | – |
| December | 11 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 91.7% | 66.7% | ▼ 27.3% |
| February | 76.5% | 100.0% | ▲ 30.8% |
| March | 42.9% | 0.0% | ▼ 100.0% |
| April | 70.6% | 0.0% | ▼ 100.0% |
| May | 71.8% | – | – |
| June | 43.3% | 63.0% | ▲ 45.3% |
| July | 60.9% | 77.4% | ▲ 27.2% |
| August | 60.0% | – | – |
| September | – | – | – |
| October | 48.3% | – | in progress |
| November | 77.8% | – | – |
| December | 81.8% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| 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 98.6% 417
- Cancelled 1.4% 6
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 |
|---|---|---|---|---|
| ELP DAL El Paso International Airport – Dallas Love Field | 902 | 11.5 min | 81.4% | 61 |
| SMF LAS Sacramento International Airport – Harry Reid International Airport | 639 | 15.1 min | 69.0% | 58 |
| LAS MKE Harry Reid International Airport – General Mitchell International Airport | 2,447 | 10.9 min | 70.7% | 58 |
| PWM BWI Portland International Jetport – Baltimore/Washington International Thurgood Marshall Airport | 727 | 16.2 min | 73.5% | 36 |
| RSW CMH Southwest Florida International Airport – John Glenn Columbus International Airport | 1,501 | 25.4 min | 50.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 69.2% | 0 |
| November 2024 | 35 | 34 | 85.3% | 1 |
| December 2024 | 56 | 55 | 76.4% | 1 |
| January 2025 | 25 | 24 | 91.7% | 1 |
| February 2025 | 17 | 17 | 76.5% | 0 |
| March 2025 | 15 | 14 | 42.9% | 1 |
| April 2025 | 34 | 34 | 70.6% | 0 |
| May 2025 | 39 | 39 | 71.8% | 0 |
| June 2025 | 30 | 30 | 43.3% | 0 |
| July 2025 | 25 | 23 | 60.9% | 2 |
| August 2025 | 5 | 5 | 60.0% | 0 |
| October 2025 | 29 | 29 | 48.3% | 0 |
| November 2025 | 9 | 9 | 77.8% | 0 |
| December 2025 | 11 | 11 | 81.8% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 4 | 4 | 0.0% | 0 |
| April 2026 | 1 | 1 | 0.0% | 0 |
| June 2026 | 27 | 27 | 63.0% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |