WN4003
WN4003 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Dallas to Midland. Of 568 departures recorded from October 2024 to July 2026, 82.6% left on time, according to the US BTS.
- On-time departures82.6%of 568 flights
- Average delay7.6 min
- July 202630▲ 0.0%vs July 2025
- Cancelled1.1%
- Legs flown under this number24
according to the US BTS · Oct 14, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 8 | ▼ 71.4% |
| February | 24 | 12 | ▼ 50.0% |
| March | 34 | 28 | ▼ 17.6% |
| April | 31 | 30 | ▼ 3.2% |
| May | 31 | 31 | 0.0% |
| June | 30 | 26 | ▼ 13.3% |
| July | 30 | 30 | 0.0% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 59 | – | in progress |
| November | 7 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 208 | 165 | ▼ 20.7% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 84.6% | 100.0% | ▲ 18.2% |
| February | 78.3% | 91.7% | ▲ 17.1% |
| March | 82.4% | 63.0% | ▼ 23.5% |
| April | 83.9% | 90.0% | ▲ 7.3% |
| May | 74.2% | 80.7% | ▲ 8.7% |
| June | 73.3% | 73.1% | ▼ 0.3% |
| July | 93.3% | 76.7% | ▼ 17.9% |
| August | 93.3% | – | – |
| September | 96.7% | – | – |
| October | 88.1% | – | in progress |
| November | 100.0% | – | – |
| December | 90.9% | – | – |
| Year-to-date average (Jan–Jul) | 81.4% | 82.1% | ▲ 0.9% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.9% 562
- Cancelled 1.1% 6
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL MAF Dallas Love Field – Midland International Air and Space Port | 513 | 5.6 min | 82.4% | 89 |
| MSY AUS Louis Armstrong New Orleans International Airport – Austin Bergstrom International Airport | 712 | 9.3 min | 86.7% | 60 |
| TPA MCI Tampa International Airport – Kansas City International Airport | 1,687 | 8.2 min | 77.6% | 58 |
| RDU TPA Raleigh-Durham International Airport – Tampa International Airport | 947 | 3.1 min | 87.9% | 58 |
| PHL DEN Philadelphia International Airport – Denver International Airport | 2,501 | 4.3 min | 94.7% | 57 |
| TPA BNA Tampa International Airport – Nashville International Airport | 987 | 12.1 min | 74.0% | 50 |
| DEN FLL Denver International Airport – Fort Lauderdale Hollywood International Airport | 2,739 | 24.6 min | 62.5% | 33 |
| MSY DAL Louis Armstrong New Orleans International Airport – Dallas Love Field | 700 | 4.3 min | 86.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 57.1% | 0 |
| November 2024 | 25 | 23 | 78.3% | 2 |
| December 2024 | 26 | 26 | 73.1% | 0 |
| January 2025 | 28 | 26 | 84.6% | 2 |
| February 2025 | 24 | 23 | 78.3% | 1 |
| March 2025 | 34 | 34 | 82.4% | 0 |
| April 2025 | 31 | 31 | 83.9% | 0 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 30 | 30 | 93.3% | 0 |
| August 2025 | 30 | 30 | 93.3% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 59 | 59 | 88.1% | 0 |
| November 2025 | 7 | 7 | 100.0% | 0 |
| December 2025 | 11 | 11 | 90.9% | 0 |
| January 2026 | 8 | 8 | 100.0% | 0 |
| February 2026 | 12 | 12 | 91.7% | 0 |
| March 2026 | 28 | 27 | 63.0% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 26 | 26 | 73.1% | 0 |
| July 2026 | 30 | 30 | 76.7% | 0 |