WN4025
WN4025 (Southwest Airlines) is a multi-stop service on 21 routes, busiest New Orleans to Chicago. Of 351 departures recorded from October 2024 to July 2026, 62.4% left on time, according to the US BTS.
- On-time departures62.4%of 351 flights
- Average delay18.4 min
- July 202621▼ 38.2%vs July 2025
- Cancelled0.9%
- Legs flown under this number21
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 | 2 | 5 | ▲ 150.0% |
| February | 10 | 19 | ▲ 90.0% |
| March | 24 | 29 | ▲ 20.8% |
| April | 9 | 30 | ▲ 233.3% |
| May | 5 | 31 | ▲ 520.0% |
| June | 30 | 19 | ▼ 36.7% |
| July | 34 | 21 | ▼ 38.2% |
| August | 25 | – | – |
| September | 25 | – | – |
| October | 17 | – | in progress |
| November | 2 | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 114 | 154 | ▲ 35.1% |
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 | 50.0% | 80.0% | ▲ 60.0% |
| February | 30.0% | 73.7% | ▲ 145.6% |
| March | 75.0% | 100.0% | ▲ 33.3% |
| April | 66.7% | 66.7% | 0.0% |
| May | 80.0% | 67.7% | ▼ 15.3% |
| June | 23.3% | 42.1% | ▲ 80.5% |
| July | 35.3% | 35.0% | ▼ 0.8% |
| August | 80.0% | – | – |
| September | 84.0% | – | – |
| October | 70.6% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 51.5% | 66.5% | ▲ 29.1% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
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 99.1% 348
- Cancelled 0.9% 3
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 |
|---|---|---|---|---|
| MSY MDW Louis Armstrong New Orleans International Airport – Chicago Midway International Airport | 1,331 | 38.8 min | 31.7% | 60 |
| SAN MDW San Diego International Airport – Chicago Midway International Airport | 2,776 | 16.2 min | 65.5% | 58 |
| TPA HOU Tampa International Airport – William P. Hobby Airport | 1,255 | 31.2 min | 27.3% | 34 |
| TPA MKE Tampa International Airport – General Mitchell International Airport | 1,733 | -6.1 min | 100.0% | 33 |
| PHX COS Phoenix Sky Harbor International Airport – City of Colorado Springs Municipal Airport | 887 | 3.8 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 3 | 3 | 33.3% | 0 |
| November 2024 | 3 | 3 | 66.7% | 0 |
| December 2024 | 8 | 8 | 87.5% | 0 |
| January 2025 | 2 | 2 | 50.0% | 0 |
| February 2025 | 10 | 10 | 30.0% | 0 |
| March 2025 | 24 | 24 | 75.0% | 0 |
| April 2025 | 9 | 9 | 66.7% | 0 |
| May 2025 | 5 | 5 | 80.0% | 0 |
| June 2025 | 30 | 30 | 23.3% | 0 |
| July 2025 | 34 | 34 | 35.3% | 0 |
| August 2025 | 25 | 25 | 80.0% | 0 |
| September 2025 | 25 | 25 | 84.0% | 0 |
| October 2025 | 17 | 17 | 70.6% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 5 | 5 | 80.0% | 0 |
| February 2026 | 19 | 19 | 73.7% | 0 |
| March 2026 | 29 | 27 | 100.0% | 2 |
| April 2026 | 30 | 30 | 66.7% | 0 |
| May 2026 | 31 | 31 | 67.7% | 0 |
| June 2026 | 19 | 19 | 42.1% | 0 |
| July 2026 | 21 | 20 | 35.0% | 1 |