WN4391
WN4391 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Kansas City to Dallas. Of 312 departures recorded from October 2024 to July 2026, 80.2% left on time, according to the US BTS.
- On-time departures80.2%of 312 flights
- Average delay11.2 min
- July 202614▲ 16.7%vs July 2025
- Cancelled1.3%
- Legs flown under this number16
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 | 21 | 2 | ▼ 90.5% |
| February | 17 | 7 | ▼ 58.8% |
| March | 3 | 28 | ▲ 833.3% |
| April | 25 | 17 | ▼ 32.0% |
| May | 30 | 13 | ▼ 56.7% |
| June | 17 | 14 | ▼ 17.6% |
| July | 12 | 14 | ▲ 16.7% |
| August | 3 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 23 | – | – |
| December | 18 | – | – |
| Year to date (Jan–Jul) | 125 | 95 | ▼ 24.0% |
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 | 66.7% | 50.0% | ▼ 25.0% |
| February | 76.5% | 85.7% | ▲ 12.1% |
| March | 66.7% | 96.3% | ▲ 44.4% |
| April | 80.0% | 100.0% | ▲ 25.0% |
| May | 63.3% | 76.9% | ▲ 21.5% |
| June | 58.8% | 92.9% | ▲ 57.9% |
| July | 66.7% | 92.9% | ▲ 39.3% |
| August | 66.7% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 87.0% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 68.4% | 85.0% | ▲ 24.2% |
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 | 3 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 98.7% 308
- Cancelled 1.3% 4
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 DAL Kansas City International Airport – Dallas Love Field | 743 | 21.3 min | 71.0% | 72 |
| SNA SMF John Wayne Orange County International Airport – Sacramento International Airport | 650 | 0.5 min | 92.9% | 42 |
| SEA OAK Seattle–Tacoma International Airport – Oakland San Francisco Bay Airport | 1,082 | 21.9 min | 64.3% | 42 |
| SAT BWI San Antonio International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,262 | -0.7 min | 96.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 88.2% | 0 |
| November 2024 | 17 | 17 | 70.6% | 0 |
| December 2024 | 14 | 14 | 71.4% | 0 |
| January 2025 | 21 | 18 | 66.7% | 3 |
| February 2025 | 17 | 17 | 76.5% | 0 |
| March 2025 | 3 | 3 | 66.7% | 0 |
| April 2025 | 25 | 25 | 80.0% | 0 |
| May 2025 | 30 | 30 | 63.3% | 0 |
| June 2025 | 17 | 17 | 58.8% | 0 |
| July 2025 | 12 | 12 | 66.7% | 0 |
| August 2025 | 3 | 3 | 66.7% | 0 |
| November 2025 | 23 | 23 | 87.0% | 0 |
| December 2025 | 18 | 18 | 100.0% | 0 |
| January 2026 | 2 | 2 | 50.0% | 0 |
| February 2026 | 7 | 7 | 85.7% | 0 |
| March 2026 | 28 | 27 | 96.3% | 1 |
| April 2026 | 17 | 17 | 100.0% | 0 |
| May 2026 | 13 | 13 | 76.9% | 0 |
| June 2026 | 14 | 14 | 92.9% | 0 |
| July 2026 | 14 | 14 | 92.9% | 0 |