WN3663
WN3663 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Kansas City to Phoenix. Of 496 departures recorded from October 2024 to July 2026, 84.2% left on time, according to the US BTS.
- On-time departures84.2%of 496 flights
- Average delay7.0 min
- July 202631▼ 11.4%vs July 2025
- Cancelled0.2%
- 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 periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 2 | ▼ 50.0% |
| February | 10 | – | – |
| March | 28 | 20 | ▼ 28.6% |
| April | 44 | 26 | ▼ 40.9% |
| May | 49 | 29 | ▼ 40.8% |
| June | 36 | 30 | ▼ 16.7% |
| July | 35 | 31 | ▼ 11.4% |
| August | 21 | – | – |
| September | 17 | – | – |
| October | 29 | – | 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 50.0% | 50.0% | 0.0% |
| February | 80.0% | – | – |
| March | 92.9% | 100.0% | ▲ 7.7% |
| April | 84.1% | 92.3% | ▲ 9.8% |
| May | 83.7% | 86.2% | ▲ 3.0% |
| June | 69.4% | 70.0% | ▲ 0.8% |
| July | 79.4% | 80.7% | ▲ 1.6% |
| August | 81.0% | – | – |
| September | 94.1% | – | – |
| October | 93.1% | – | in progress |
| November | 100.0% | – | – |
| December | 95.0% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | 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 99.8% 495
- Cancelled 0.2% 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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MCI PHX Kansas City International Airport – Phoenix Sky Harbor International Airport | 1,677 | 10.9 min | 73.3% | 61 |
| SJC SNA Mineta San Jose International Airport – John Wayne Orange County International Airport | 550 | 10.3 min | 84.5% | 58 |
| SJC BUR Mineta San Jose International Airport – Hollywood Burbank/Bob Hope Airport | 477 | 12.3 min | 74.1% | 58 |
| MDW OMA Chicago Midway International Airport – Eppley Airfield | 679 | 2.3 min | 89.8% | 49 |
| MCO STL Orlando International Airport – St. Louis Lambert International Airport | 1,420 | 0.3 min | 95.7% | 46 |
| HNL OGG Daniel K. Inouye International Airport – Kahului International Airport | 162 | 3.6 min | 87.9% | 33 |
| DEN HDN Denver International Airport – Yampa Valley Airport | 227 | 4.2 min | 87.5% | 32 |
| PHX MCI Phoenix Sky Harbor International Airport – Kansas City International Airport | 1,677 | 3.9 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 8 | 8 | 100.0% | 0 |
| December 2024 | 12 | 12 | 25.0% | 0 |
| January 2025 | 4 | 4 | 50.0% | 0 |
| February 2025 | 10 | 10 | 80.0% | 0 |
| March 2025 | 28 | 28 | 92.9% | 0 |
| April 2025 | 44 | 44 | 84.1% | 0 |
| May 2025 | 49 | 49 | 83.7% | 0 |
| June 2025 | 36 | 36 | 69.4% | 0 |
| July 2025 | 35 | 34 | 79.4% | 1 |
| August 2025 | 21 | 21 | 81.0% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 29 | 29 | 93.1% | 0 |
| November 2025 | 25 | 25 | 100.0% | 0 |
| December 2025 | 20 | 20 | 95.0% | 0 |
| January 2026 | 2 | 2 | 50.0% | 0 |
| March 2026 | 20 | 20 | 100.0% | 0 |
| April 2026 | 26 | 26 | 92.3% | 0 |
| May 2026 | 29 | 29 | 86.2% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |