WN4400
WN4400 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Houston to Oklahoma City. Of 402 departures recorded from October 2024 to July 2026, 71.3% left on time, according to the US BTS.
- On-time departures71.3%of 402 flights
- Average delay16.3 min
- July 202623▲ 43.8%vs July 2025
- Cancelled0.5%
- Legs flown under this number23
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 | 32 | ▲ 700.0% |
| February | 16 | 35 | ▲ 118.8% |
| March | 24 | 29 | ▲ 20.8% |
| April | 21 | 8 | ▼ 61.9% |
| May | 22 | 5 | ▼ 77.3% |
| June | 18 | 19 | ▲ 5.6% |
| July | 16 | 23 | ▲ 43.8% |
| August | 4 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 36 | – | – |
| December | 43 | – | – |
| Year to date (Jan–Jul) | 121 | 151 | ▲ 24.8% |
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 | 100.0% | 71.9% | ▼ 28.1% |
| February | 62.5% | 80.0% | ▲ 28.0% |
| March | 82.6% | 72.4% | ▼ 12.3% |
| April | 66.7% | 50.0% | ▼ 25.0% |
| May | 71.4% | 100.0% | ▲ 40.0% |
| June | 50.0% | 68.4% | ▲ 36.8% |
| July | 56.3% | 52.2% | ▼ 7.3% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 80.6% | – | – |
| December | 69.8% | – | – |
| Year-to-date average (Jan–Jul) | 69.9% | 70.7% | ▲ 1.1% |
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 | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 100.0% |
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 99.5% 400
- Cancelled 0.5% 2
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| HOU OKC William P. Hobby Airport – OKC Will Rogers World Airport | 675 | 20.1 min | 59.5% | 42 |
| LAS SFO Harry Reid International Airport – San Francisco International Airport | 665 | 15.0 min | 68.3% | 41 |
| HOU STL William P. Hobby Airport – St. Louis Lambert International Airport | 1,108 | 23.0 min | 73.7% | 39 |
| SAT ELP San Antonio International Airport – El Paso International Airport | 797 | 17.6 min | 76.5% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 76.9% | 0 |
| November 2024 | 12 | 12 | 83.3% | 0 |
| December 2024 | 22 | 22 | 81.8% | 0 |
| January 2025 | 4 | 4 | 100.0% | 0 |
| February 2025 | 16 | 16 | 62.5% | 0 |
| March 2025 | 24 | 23 | 82.6% | 1 |
| April 2025 | 21 | 21 | 66.7% | 0 |
| May 2025 | 22 | 21 | 71.4% | 1 |
| June 2025 | 18 | 18 | 50.0% | 0 |
| July 2025 | 16 | 16 | 56.3% | 0 |
| August 2025 | 4 | 4 | 50.0% | 0 |
| November 2025 | 36 | 36 | 80.6% | 0 |
| December 2025 | 43 | 43 | 69.8% | 0 |
| January 2026 | 32 | 32 | 71.9% | 0 |
| February 2026 | 35 | 35 | 80.0% | 0 |
| March 2026 | 29 | 29 | 72.4% | 0 |
| April 2026 | 8 | 8 | 50.0% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 19 | 19 | 68.4% | 0 |
| July 2026 | 23 | 23 | 52.2% | 0 |