WN4006
WN4006 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Chicago to Dallas. Of 418 departures recorded from October 2024 to July 2026, 58.0% left on time, according to the US BTS.
- On-time departures58.0%of 418 flights
- Average delay27.6 min
- July 202625▼ 35.9%vs July 2025
- Cancelled1.4%
- Legs flown under this number26
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 20 | 7 | ▼ 65.0% |
| February | 11 | 11 | 0.0% |
| March | 37 | 40 | ▲ 8.1% |
| April | 9 | 25 | ▲ 177.8% |
| May | – | 23 | – |
| June | 34 | 25 | ▼ 26.5% |
| July | 39 | 25 | ▼ 35.9% |
| August | 28 | – | – |
| September | 26 | – | – |
| October | 19 | – | in progress |
| November | 6 | – | – |
| December | 9 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 79.0% | 85.7% | ▲ 8.6% |
| February | 81.8% | 77.8% | ▼ 4.9% |
| March | 81.1% | 41.0% | ▼ 49.4% |
| April | 55.6% | 66.7% | ▲ 20.0% |
| May | – | 65.2% | – |
| June | 47.1% | 44.0% | ▼ 6.5% |
| July | 31.6% | 40.0% | ▲ 26.7% |
| August | 42.9% | – | – |
| September | 57.7% | – | – |
| October | 100.0% | – | in progress |
| November | 83.3% | – | – |
| 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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| 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% 412
- Cancelled 1.4% 6
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD DAL Chicago O'Hare International Airport – Dallas Love Field | 1,285 | 38.8 min | 41.0% | 61 |
| PHL MDW Philadelphia International Airport – Chicago Midway International Airport | 1,073 | 22.6 min | 57.1% | 49 |
| TPA BNA Tampa International Airport – Nashville International Airport | 987 | 46.7 min | 41.5% | 41 |
| RIC MCO Richmond International Airport – Orlando International Airport | 1,075 | 11.2 min | 71.8% | 39 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 88.9% | 0 |
| November 2024 | 5 | 5 | 80.0% | 0 |
| December 2024 | 10 | 10 | 20.0% | 0 |
| January 2025 | 20 | 19 | 79.0% | 1 |
| February 2025 | 11 | 11 | 81.8% | 0 |
| March 2025 | 37 | 37 | 81.1% | 0 |
| April 2025 | 9 | 9 | 55.6% | 0 |
| June 2025 | 34 | 34 | 47.1% | 0 |
| July 2025 | 39 | 38 | 31.6% | 1 |
| August 2025 | 28 | 28 | 42.9% | 0 |
| September 2025 | 26 | 26 | 57.7% | 0 |
| October 2025 | 19 | 19 | 100.0% | 0 |
| November 2025 | 6 | 6 | 83.3% | 0 |
| December 2025 | 9 | 9 | 66.7% | 0 |
| January 2026 | 7 | 7 | 85.7% | 0 |
| February 2026 | 11 | 9 | 77.8% | 2 |
| March 2026 | 40 | 39 | 41.0% | 1 |
| April 2026 | 25 | 24 | 66.7% | 1 |
| May 2026 | 23 | 23 | 65.2% | 0 |
| June 2026 | 25 | 25 | 44.0% | 0 |
| July 2026 | 25 | 25 | 40.0% | 0 |