WN4448
WN4448 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Tampa to Chicago. Of 320 departures recorded from October 2024 to July 2026, 68.2% left on time, according to the US BTS.
- On-time departures68.2%of 320 flights
- Average delay15.1 min
- July 202614
- Cancelled0.6%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 29 | – |
| February | 8 | 28 | ▲ 250.0% |
| March | 29 | 31 | ▲ 6.9% |
| April | 8 | 27 | ▲ 237.5% |
| May | – | 25 | – |
| June | – | 14 | – |
| July | – | 14 | – |
| August | 15 | – | – |
| September | 17 | – | – |
| October | 50 | – | in progress |
| November | 8 | – | – |
| 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 82.8% | – |
| February | 100.0% | 92.6% | ▼ 7.4% |
| March | 86.2% | 54.8% | ▼ 36.4% |
| April | 62.5% | 44.4% | ▼ 28.9% |
| May | – | 28.0% | – |
| June | – | 50.0% | – |
| July | – | 64.3% | – |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 51.0% | – | in progress |
| November | 75.0% | – | – |
| 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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | 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 99.4% 318
- Cancelled 0.6% 2
Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| TPA MDW Tampa International Airport – Chicago Midway International Airport | 1,607 | 9.8 min | 89.5% | 58 |
| AUS BNA Austin Bergstrom International Airport – Nashville International Airport | 1,215 | 33.2 min | 34.7% | 49 |
| DEN LGB Denver International Airport – Long Beach International Airport | 1,373 | 25.5 min | 48.5% | 33 |
| MSY BNA Louis Armstrong New Orleans International Airport – Nashville International Airport | 759 | -2.3 min | 100.0% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| February 2025 | 8 | 8 | 100.0% | 0 |
| March 2025 | 29 | 29 | 86.2% | 0 |
| April 2025 | 8 | 8 | 62.5% | 0 |
| August 2025 | 15 | 15 | 100.0% | 0 |
| September 2025 | 17 | 17 | 100.0% | 0 |
| October 2025 | 50 | 49 | 51.0% | 1 |
| November 2025 | 8 | 8 | 75.0% | 0 |
| December 2025 | 11 | 11 | 81.8% | 0 |
| January 2026 | 29 | 29 | 82.8% | 0 |
| February 2026 | 28 | 27 | 92.6% | 1 |
| March 2026 | 31 | 31 | 54.8% | 0 |
| April 2026 | 27 | 27 | 44.4% | 0 |
| May 2026 | 25 | 25 | 28.0% | 0 |
| June 2026 | 14 | 14 | 50.0% | 0 |
| July 2026 | 14 | 14 | 64.3% | 0 |