WN4542
WN4542 (Southwest Airlines) is a multi-stop service on 11 routes, busiest Tampa to Indianapolis. Of 356 departures recorded from October 2024 to July 2026, 70.2% left on time, according to the US BTS.
- On-time departures70.2%of 356 flights
- Average delay17.4 min
- July 202614
- Cancelled1.1%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 32 | 4 | ▼ 87.5% |
| February | 28 | – | – |
| March | 17 | 27 | ▲ 58.8% |
| April | 20 | 30 | ▲ 50.0% |
| May | 22 | 31 | ▲ 40.9% |
| June | 3 | 15 | ▲ 400.0% |
| July | – | 14 | – |
| August | 4 | – | – |
| September | 4 | – | – |
| October | – | – | in progress |
| November | 17 | – | – |
| December | 15 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 72.4% | 50.0% | ▼ 30.9% |
| February | 75.0% | – | – |
| March | 76.5% | 85.2% | ▲ 11.4% |
| April | 57.9% | 70.0% | ▲ 20.9% |
| May | 54.6% | 67.7% | ▲ 24.2% |
| June | 0.0% | 100.0% | – |
| July | – | 85.7% | – |
| August | 25.0% | – | – |
| September | 75.0% | – | – |
| October | – | – | in progress |
| November | 82.4% | – | – |
| December | 46.7% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | 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 98.9% 352
- Cancelled 1.1% 4
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 |
|---|---|---|---|---|
| TPA IND Tampa International Airport – Indianapolis International Airport | 1,351 | 15.0 min | 74.8% | 101 |
| LAS DAL Harry Reid International Airport – Dallas Love Field | 1,714 | 15.7 min | 67.2% | 58 |
| MCI DEN Kansas City International Airport – Denver International Airport | 855 | 42.9 min | 51.2% | 42 |
| AUS RDU Austin Bergstrom International Airport – Raleigh-Durham International Airport | 1,866 | 17.8 min | 63.9% | 36 |
| STL HOU St. Louis Lambert International Airport – William P. Hobby Airport | 1,108 | 5.3 min | 87.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 65.2% | 0 |
| November 2024 | 25 | 25 | 88.0% | 0 |
| December 2024 | 25 | 25 | 52.0% | 0 |
| January 2025 | 32 | 29 | 72.4% | 3 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 17 | 17 | 76.5% | 0 |
| April 2025 | 20 | 19 | 57.9% | 1 |
| May 2025 | 22 | 22 | 54.6% | 0 |
| June 2025 | 3 | 3 | 0.0% | 0 |
| August 2025 | 4 | 4 | 25.0% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| November 2025 | 17 | 17 | 82.4% | 0 |
| December 2025 | 15 | 15 | 46.7% | 0 |
| January 2026 | 4 | 4 | 50.0% | 0 |
| March 2026 | 27 | 27 | 85.2% | 0 |
| April 2026 | 30 | 30 | 70.0% | 0 |
| May 2026 | 31 | 31 | 67.7% | 0 |
| June 2026 | 15 | 15 | 100.0% | 0 |
| July 2026 | 14 | 14 | 85.7% | 0 |