WN4426
WN4426 (Southwest Airlines) is a multi-stop service on 17 routes, busiest New Orleans to Tampa. Of 415 departures recorded from October 2024 to July 2026, 63.3% left on time, according to the US BTS.
- On-time departures63.3%of 415 flights
- Average delay20.1 min
- July 202633▲ 312.5%vs July 2025
- Cancelled0.2%
- Legs flown under this number17
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 | 8 | 5 | ▼ 37.5% |
| February | 17 | – | – |
| March | 23 | 23 | 0.0% |
| April | 31 | 10 | ▼ 67.7% |
| May | 22 | 5 | ▼ 77.3% |
| June | 12 | 31 | ▲ 158.3% |
| July | 8 | 33 | ▲ 312.5% |
| August | 25 | – | – |
| September | 27 | – | – |
| October | 32 | – | in progress |
| November | 26 | – | – |
| December | 29 | – | – |
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 | 75.0% | 60.0% | ▼ 20.0% |
| February | 64.7% | – | – |
| March | 65.2% | 69.6% | ▲ 6.7% |
| April | 63.3% | 80.0% | ▲ 26.3% |
| May | 59.1% | 100.0% | ▲ 69.2% |
| June | 91.7% | 16.1% | ▼ 82.4% |
| July | 100.0% | 30.3% | ▼ 69.7% |
| August | 76.0% | – | – |
| September | 88.9% | – | – |
| October | 43.8% | – | in progress |
| November | 61.5% | – | – |
| December | 51.7% | – | – |
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 | 0 | 0 | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 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 99.8% 414
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 15, 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 TPA Louis Armstrong New Orleans International Airport – Tampa International Airport | 785 | 8.5 min | 82.9% | 70 |
| STL DCA St. Louis Lambert International Airport – Ronald Reagan Washington National Airport | 1,154 | 31.4 min | 56.7% | 60 |
| AUS PHX Austin Bergstrom International Airport – Phoenix Sky Harbor International Airport | 1,401 | 37.3 min | 22.8% | 57 |
| TPA MKE Tampa International Airport – General Mitchell International Airport | 1,733 | 11.0 min | 82.0% | 50 |
| BWI TPA Baltimore/Washington International Thurgood Marshall Airport – Tampa International Airport | 1,358 | 7.8 min | 78.4% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 22 | 22 | 90.9% | 0 |
| December 2024 | 20 | 20 | 90.0% | 0 |
| January 2025 | 8 | 8 | 75.0% | 0 |
| February 2025 | 17 | 17 | 64.7% | 0 |
| March 2025 | 23 | 23 | 65.2% | 0 |
| April 2025 | 31 | 30 | 63.3% | 1 |
| May 2025 | 22 | 22 | 59.1% | 0 |
| June 2025 | 12 | 12 | 91.7% | 0 |
| July 2025 | 8 | 8 | 100.0% | 0 |
| August 2025 | 25 | 25 | 76.0% | 0 |
| September 2025 | 27 | 27 | 88.9% | 0 |
| October 2025 | 32 | 32 | 43.8% | 0 |
| November 2025 | 26 | 26 | 61.5% | 0 |
| December 2025 | 29 | 29 | 51.7% | 0 |
| January 2026 | 5 | 5 | 60.0% | 0 |
| March 2026 | 23 | 23 | 69.6% | 0 |
| April 2026 | 10 | 10 | 80.0% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 31 | 31 | 16.1% | 0 |
| July 2026 | 33 | 33 | 30.3% | 0 |