WN4360
WN4360 (Southwest Airlines) is a multi-stop service on 12 routes, busiest St Louis to Phoenix. Of 312 departures recorded from October 2024 to July 2026, 72.6% left on time, according to the US BTS.
- On-time departures72.6%of 312 flights
- Average delay13.3 min
- July 202628
- Cancelled1.6%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 27 | 28 | ▲ 3.7% |
| February | 31 | 18 | ▼ 41.9% |
| March | 17 | 26 | ▲ 52.9% |
| April | 3 | 19 | ▲ 533.3% |
| May | – | 18 | – |
| June | – | 29 | – |
| July | – | 28 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 25 | – | – |
| December | 20 | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 88.5% | ▼ 11.5% |
| February | 87.1% | 88.2% | ▲ 1.3% |
| March | 76.5% | 50.0% | ▼ 34.6% |
| April | 33.3% | 68.4% | ▲ 105.3% |
| May | – | 61.1% | – |
| June | – | 37.9% | – |
| July | – | 28.6% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 92.0% | – | – |
| December | 85.0% | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 2 | 0.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| 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 98.4% 307
- Cancelled 1.6% 5
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 |
|---|---|---|---|---|
| STL PHX St. Louis Lambert International Airport – Phoenix Sky Harbor International Airport | 2,026 | 44.8 min | 29.6% | 54 |
| SAT HOU San Antonio International Airport – William P. Hobby Airport | 309 | -0.0 min | 91.8% | 51 |
| ABQ DAL Albuquerque International Sunport – Dallas Love Field | 933 | 1.2 min | 90.9% | 47 |
| SMF DEN Sacramento International Airport – Denver International Airport | 1,460 | 5.0 min | 87.0% | 46 |
| LAS BUR Harry Reid International Airport – Hollywood Burbank/Bob Hope Airport | 359 | 18.2 min | 63.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| January 2025 | 27 | 25 | 100.0% | 2 |
| February 2025 | 31 | 31 | 87.1% | 0 |
| March 2025 | 17 | 17 | 76.5% | 0 |
| April 2025 | 3 | 3 | 33.3% | 0 |
| November 2025 | 25 | 25 | 92.0% | 0 |
| December 2025 | 20 | 20 | 85.0% | 0 |
| January 2026 | 28 | 26 | 88.5% | 2 |
| February 2026 | 18 | 17 | 88.2% | 1 |
| March 2026 | 26 | 26 | 50.0% | 0 |
| April 2026 | 19 | 19 | 68.4% | 0 |
| May 2026 | 18 | 18 | 61.1% | 0 |
| June 2026 | 29 | 29 | 37.9% | 0 |
| July 2026 | 28 | 28 | 28.6% | 0 |