WN4679
WN4679 (Southwest Airlines) is a multi-stop service on 13 routes, busiest Chicago to Houston. Of 271 departures recorded from November 2024 to July 2026, 82.2% left on time, according to the US BTS.
- On-time departures82.2%of 271 flights
- Average delay9.6 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.7%
- 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 | 50 | 3 | ▼ 94.0% |
| February | 44 | – | – |
| March | 15 | 1 | ▼ 93.3% |
| April | 5 | 3 | ▼ 40.0% |
| May | 3 | 4 | ▲ 33.3% |
| June | 27 | 27 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 4 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 5 | – | – |
| December | 11 | – | – |
according to the US BTS · November 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 | 93.8% | 66.7% | ▼ 28.9% |
| February | 70.5% | – | – |
| March | 80.0% | 0.0% | ▼ 100.0% |
| April | 100.0% | 66.7% | ▼ 33.3% |
| May | 66.7% | 25.0% | ▼ 62.5% |
| June | 85.2% | 85.2% | 0.0% |
| July | 83.3% | 96.8% | ▲ 16.1% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 60.0% | – | – |
| December | 63.6% | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 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 | 2 | 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 · November 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 99.3% 269
- Cancelled 0.7% 2
Share of all recorded flights in the period, all legs. · Nov 9, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW HOU Chicago Midway International Airport – William P. Hobby Airport | 1,510 | 9.6 min | 85.0% | 60 |
| SDF MCO Louisville Muhammad Ali International Airport – Orlando International Airport | 1,158 | 2.8 min | 91.4% | 58 |
| TPA BHM Tampa International Airport – Birmingham-Shuttlesworth International Airport | 740 | 11.1 min | 79.3% | 54 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 4 | 4 | 50.0% | 0 |
| January 2025 | 50 | 48 | 93.8% | 2 |
| February 2025 | 44 | 44 | 70.5% | 0 |
| March 2025 | 15 | 15 | 80.0% | 0 |
| April 2025 | 5 | 5 | 100.0% | 0 |
| May 2025 | 3 | 3 | 66.7% | 0 |
| June 2025 | 27 | 27 | 85.2% | 0 |
| July 2025 | 30 | 30 | 83.3% | 0 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 5 | 5 | 60.0% | 0 |
| December 2025 | 11 | 11 | 63.6% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| March 2026 | 1 | 1 | 0.0% | 0 |
| April 2026 | 3 | 3 | 66.7% | 0 |
| May 2026 | 4 | 4 | 25.0% | 0 |
| June 2026 | 27 | 27 | 85.2% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |