WN4324
WN4324 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Atlanta to St Louis. Of 316 departures recorded from October 2024 to July 2026, 79.7% left on time, according to the US BTS.
- On-time departures79.7%of 316 flights
- Average delay9.3 min
- July 202623▲ 35.3%vs July 2025
- Cancelled0.3%
- Legs flown under this number16
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 | 4 | 7 | ▲ 75.0% |
| February | 2 | 1 | ▼ 50.0% |
| March | 9 | 27 | ▲ 200.0% |
| April | 22 | 9 | ▼ 59.1% |
| May | 26 | 4 | ▼ 84.6% |
| June | 20 | 19 | ▼ 5.0% |
| July | 17 | 23 | ▲ 35.3% |
| August | 3 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 31 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 100 | 90 | ▼ 10.0% |
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% | 71.4% | ▲ 42.9% |
| February | 100.0% | 100.0% | 0.0% |
| March | 66.7% | 70.4% | ▲ 5.5% |
| April | 72.7% | 66.7% | ▼ 8.3% |
| May | 100.0% | 50.0% | ▼ 50.0% |
| June | 100.0% | 89.5% | ▼ 10.5% |
| July | 88.2% | 100.0% | ▲ 13.3% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 77.4% | – | – |
| December | 59.4% | – | – |
| Year-to-date average (Jan–Jul) | 82.5% | 78.3% | ▼ 5.1% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 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 99.7% 315
- Cancelled 0.3% 1
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 |
|---|---|---|---|---|
| ATL STL Hartsfield Jackson Atlanta International Airport – St. Louis Lambert International Airport | 779 | 3.1 min | 92.0% | 50 |
| MCO SJU Orlando International Airport – Luis Munoz Marin International Airport | 1,913 | 21.7 min | 69.8% | 43 |
| CMH DAL John Glenn Columbus International Airport – Dallas Love Field | 1,478 | -2.7 min | 95.2% | 42 |
| SJC LGB Mineta San Jose International Airport – Long Beach International Airport | 522 | 12.6 min | 65.7% | 36 |
| RNO PHX Reno Tahoe International Airport – Phoenix Sky Harbor International Airport | 967 | 8.4 min | 75.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 21 | 21 | 85.7% | 0 |
| December 2024 | 18 | 18 | 55.6% | 0 |
| January 2025 | 4 | 4 | 50.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 9 | 9 | 66.7% | 0 |
| April 2025 | 22 | 22 | 72.7% | 0 |
| May 2025 | 26 | 26 | 100.0% | 0 |
| June 2025 | 20 | 20 | 100.0% | 0 |
| July 2025 | 17 | 17 | 88.2% | 0 |
| August 2025 | 3 | 3 | 100.0% | 0 |
| November 2025 | 31 | 31 | 77.4% | 0 |
| December 2025 | 33 | 32 | 59.4% | 1 |
| January 2026 | 7 | 7 | 71.4% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 27 | 27 | 70.4% | 0 |
| April 2026 | 9 | 9 | 66.7% | 0 |
| May 2026 | 4 | 4 | 50.0% | 0 |
| June 2026 | 19 | 19 | 89.5% | 0 |
| July 2026 | 23 | 23 | 100.0% | 0 |