WN3673
WN3673 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Kansas City to St Louis. Of 349 departures recorded from October 2024 to July 2026, 77.0% left on time, according to the US BTS.
- On-time departures77.0%of 349 flights
- Average delay11.6 min
- July 202618▼ 50.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number20
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 | 3 | – | – |
| February | 8 | 10 | ▲ 25.0% |
| March | 1 | 41 | ▲ 4,000.0% |
| April | 23 | 23 | 0.0% |
| May | 31 | 17 | ▼ 45.2% |
| June | 34 | 17 | ▼ 50.0% |
| July | 36 | 18 | ▼ 50.0% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 5 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 | 100.0% | – | – |
| February | 37.5% | 70.0% | ▲ 86.7% |
| March | 100.0% | 58.5% | ▼ 41.5% |
| April | 82.6% | 47.8% | ▼ 42.1% |
| May | 63.3% | 76.5% | ▲ 20.7% |
| June | 90.9% | 82.4% | ▼ 9.4% |
| July | 94.4% | 94.4% | 0.0% |
| August | 95.0% | – | – |
| September | 94.1% | – | – |
| October | 100.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 | 0 | – | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 99.4% 347
- Cancelled 0.6% 2
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 |
|---|---|---|---|---|
| MCI STL Kansas City International Airport – St. Louis Lambert International Airport | 380 | 2.3 min | 93.3% | 60 |
| SJC HOU Mineta San Jose International Airport – William P. Hobby Airport | 2,605 | 7.8 min | 88.2% | 34 |
| DAL PHX Dallas Love Field – Phoenix Sky Harbor International Airport | 1,412 | 14.6 min | 73.3% | 32 |
| ONT SJC Ontario International Airport – Mineta San Jose International Airport | 536 | 18.2 min | 58.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 64.7% | 0 |
| November 2024 | 16 | 16 | 87.5% | 0 |
| December 2024 | 12 | 12 | 58.3% | 0 |
| January 2025 | 3 | 3 | 100.0% | 0 |
| February 2025 | 8 | 8 | 37.5% | 0 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 23 | 23 | 82.6% | 0 |
| May 2025 | 31 | 30 | 63.3% | 1 |
| June 2025 | 34 | 33 | 90.9% | 1 |
| July 2025 | 36 | 36 | 94.4% | 0 |
| August 2025 | 20 | 20 | 95.0% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| February 2026 | 10 | 10 | 70.0% | 0 |
| March 2026 | 41 | 41 | 58.5% | 0 |
| April 2026 | 23 | 23 | 47.8% | 0 |
| May 2026 | 17 | 17 | 76.5% | 0 |
| June 2026 | 17 | 17 | 82.4% | 0 |
| July 2026 | 18 | 18 | 94.4% | 0 |