WN4809
WN4809 (Southwest Airlines) is a multi-stop service on 8 routes, busiest San Antonio to St Louis. Of 120 departures recorded from October 2024 to July 2026, 85.8% left on time, according to the US BTS.
- On-time departures85.8%of 120 flights
- Average delay5.1 min
- July 202626
- Cancelled0.0%
- Legs flown under this number8
Recorded departures by month
Short series — WN4809 has only 11 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.
Months without data are left blank.
The most recent periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 8 | ▲ 166.7% |
| February | – | 8 | – |
| March | – | 1 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 23 | – |
| July | – | 26 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 4 | – | – |
| December | 11 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Short series — WN4809 has only 11 months so far. Enough to show the level now, not enough to read a trend.
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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 33.3% | 87.5% | ▲ 162.5% |
| February | – | 87.5% | – |
| March | – | 100.0% | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 82.6% | – |
| July | – | 96.2% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 75.0% | – | – |
| December | 54.6% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Short series — WN4809 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Short series — WN4809 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| 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 100.0% 120
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SAT STL San Antonio International Airport – St. Louis Lambert International Airport | 1,266 | 5.6 min | 89.8% | 49 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 100.0% | 0 |
| November 2024 | 18 | 18 | 94.4% | 0 |
| December 2024 | 8 | 8 | 87.5% | 0 |
| January 2025 | 3 | 3 | 33.3% | 0 |
| November 2025 | 4 | 4 | 75.0% | 0 |
| December 2025 | 11 | 11 | 54.6% | 0 |
| January 2026 | 8 | 8 | 87.5% | 0 |
| February 2026 | 8 | 8 | 87.5% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 23 | 23 | 82.6% | 0 |
| July 2026 | 26 | 26 | 96.2% | 0 |