WN4586
WN4586 (Southwest Airlines) is a multi-stop service on 13 routes, busiest Phoenix to Kansas City. Of 347 departures recorded from October 2024 to July 2026, 80.9% left on time, according to the US BTS.
- On-time departures80.9%of 347 flights
- Average delay10.0 min
- July 202624▼ 25.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 1 | ▼ 96.4% |
| February | 28 | – | – |
| March | 11 | 1 | ▼ 90.9% |
| April | 25 | 23 | ▼ 8.0% |
| May | 30 | 31 | ▲ 3.3% |
| June | 28 | 19 | ▼ 32.1% |
| July | 32 | 24 | ▼ 25.0% |
| August | 2 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 2 | – | – |
| 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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 74.1% | 100.0% | ▲ 35.0% |
| February | 82.1% | – | – |
| March | 72.7% | 0.0% | ▼ 100.0% |
| April | 80.0% | 100.0% | ▲ 25.0% |
| May | 60.0% | 100.0% | ▲ 66.7% |
| June | 89.3% | 47.4% | ▼ 46.9% |
| July | 90.6% | 70.8% | ▼ 21.8% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 50.0% | – | – |
| 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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 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 | 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% 346
- Cancelled 0.3% 1
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX MCI Phoenix Sky Harbor International Airport – Kansas City International Airport | 1,677 | 6.7 min | 84.3% | 90 |
| TPA STL Tampa International Airport – St. Louis Lambert International Airport | 1,400 | -4.0 min | 98.3% | 57 |
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | 23.8 min | 68.4% | 57 |
| SNA LAS John Wayne Orange County International Airport – Harry Reid International Airport | 365 | 4.7 min | 90.5% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 23 | 23 | 95.7% | 0 |
| December 2024 | 20 | 20 | 75.0% | 0 |
| January 2025 | 28 | 27 | 74.1% | 1 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 11 | 11 | 72.7% | 0 |
| April 2025 | 25 | 25 | 80.0% | 0 |
| May 2025 | 30 | 30 | 60.0% | 0 |
| June 2025 | 28 | 28 | 89.3% | 0 |
| July 2025 | 32 | 32 | 90.6% | 0 |
| August 2025 | 2 | 2 | 50.0% | 0 |
| November 2025 | 2 | 2 | 50.0% | 0 |
| December 2025 | 2 | 2 | 0.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 1 | 1 | 0.0% | 0 |
| April 2026 | 23 | 23 | 100.0% | 0 |
| May 2026 | 31 | 31 | 100.0% | 0 |
| June 2026 | 19 | 19 | 47.4% | 0 |
| July 2026 | 24 | 24 | 70.8% | 0 |