WN4432
WN4432 (Southwest Airlines) is a multi-stop service on 9 routes, busiest St Louis to Austin. Of 198 departures recorded from November 2025 to July 2026, 77.3% left on time, according to the US BTS.
- On-time departures77.3%of 198 flights
- Average delay13.3 min
- July 202623
- Cancelled0.0%
- Legs flown under this number9
Recorded departures by month
Short series — WN4432 has only 9 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
The most recent periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 4 | – |
| February | – | 10 | – |
| March | – | 25 | – |
| April | – | 26 | – |
| May | – | 25 | – |
| June | – | 22 | – |
| July | – | 23 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 30 | – | – |
| December | 33 | – | – |
according to the US BTS · November 2025 → July 2026
On-time departures by month
Short series — WN4432 has only 9 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 75.0% | – |
| February | – | 80.0% | – |
| March | – | 44.0% | – |
| April | – | 69.2% | – |
| May | – | 64.0% | – |
| June | – | 95.5% | – |
| July | – | 100.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 86.7% | – | – |
| December | 81.8% | – | – |
according to the US BTS · November 2025 → July 2026
Average departure delay by month
Short series — WN4432 has only 9 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · November 2025 → July 2026
Cancelled departures by month
Short series — WN4432 has only 9 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · November 2025 → 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 100.0% 198
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Nov 2, 2025 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL AUS St. Louis Lambert International Airport – Austin Bergstrom International Airport | 1,161 | 18.9 min | 67.4% | 49 |
| TPA STL Tampa International Airport – St. Louis Lambert International Airport | 1,400 | 5.8 min | 95.6% | 45 |
| BOI MDW Boise Air Terminal/Gowen Field – Chicago Midway International Airport | 2,325 | -2.0 min | 100.0% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2025 | 30 | 30 | 86.7% | 0 |
| December 2025 | 33 | 33 | 81.8% | 0 |
| January 2026 | 4 | 4 | 75.0% | 0 |
| February 2026 | 10 | 10 | 80.0% | 0 |
| March 2026 | 25 | 25 | 44.0% | 0 |
| April 2026 | 26 | 26 | 69.2% | 0 |
| May 2026 | 25 | 25 | 64.0% | 0 |
| June 2026 | 22 | 22 | 95.5% | 0 |
| July 2026 | 23 | 23 | 100.0% | 0 |