WN4632
WN4632 (Southwest Airlines) is a multi-stop service on 21 routes, busiest St Louis to Phoenix. Of 324 departures recorded from October 2024 to July 2026, 75.2% left on time, according to the US BTS.
- On-time departures75.2%of 324 flights
- Average delay14.9 min
- July 202621▼ 47.5%vs July 2025
- Cancelled1.5%
- Legs flown under this number21
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 23 | ▲ 1,050.0% |
| February | – | 22 | – |
| March | 16 | 54 | ▲ 237.5% |
| April | 10 | 16 | ▲ 60.0% |
| May | 6 | 9 | ▲ 50.0% |
| June | 34 | 18 | ▼ 47.1% |
| July | 40 | 21 | ▼ 47.5% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | – | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 50.0% | 77.3% | ▲ 54.5% |
| February | – | 72.7% | – |
| March | 85.7% | 94.4% | ▲ 10.2% |
| April | 77.8% | 100.0% | ▲ 28.6% |
| May | 83.3% | 66.7% | ▼ 20.0% |
| June | 58.8% | 61.1% | ▲ 3.9% |
| July | 65.0% | 66.7% | ▲ 2.6% |
| August | 57.1% | – | – |
| September | 75.0% | – | – |
| October | – | – | in progress |
| November | 66.7% | – | – |
| December | 0.0% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 0 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 1 | 1 | 0.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 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 98.5% 319
- Cancelled 1.5% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL PHX St. Louis Lambert International Airport – Phoenix Sky Harbor International Airport | 2,026 | 22.4 min | 63.3% | 60 |
| MSY DAL Louis Armstrong New Orleans International Airport – Dallas Love Field | 700 | 8.2 min | 80.5% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 17 | 17 | 76.5% | 0 |
| December 2024 | 6 | 6 | 66.7% | 0 |
| January 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 16 | 14 | 85.7% | 2 |
| April 2025 | 10 | 9 | 77.8% | 1 |
| May 2025 | 6 | 6 | 83.3% | 0 |
| June 2025 | 34 | 34 | 58.8% | 0 |
| July 2025 | 40 | 40 | 65.0% | 0 |
| August 2025 | 7 | 7 | 57.1% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 2 | 2 | 0.0% | 0 |
| January 2026 | 23 | 22 | 77.3% | 1 |
| February 2026 | 22 | 22 | 72.7% | 0 |
| March 2026 | 54 | 54 | 94.4% | 0 |
| April 2026 | 16 | 15 | 100.0% | 1 |
| May 2026 | 9 | 9 | 66.7% | 0 |
| June 2026 | 18 | 18 | 61.1% | 0 |
| July 2026 | 21 | 21 | 66.7% | 0 |