WN4647
WN4647 (Southwest Airlines) is a multi-stop service on 13 routes, busiest Houston to Burbank. Of 237 departures recorded from October 2024 to July 2026, 69.4% left on time, according to the US BTS.
- On-time departures69.4%of 237 flights
- Average delay15.7 min
- July 202627
- Cancelled0.8%
- 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 periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 27 | ▲ 575.0% |
| February | – | 17 | – |
| March | – | 7 | – |
| April | 3 | 4 | ▲ 33.3% |
| May | 4 | 4 | 0.0% |
| June | 1 | 23 | ▲ 2,200.0% |
| July | – | 27 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 75.0% | 92.6% | ▲ 23.5% |
| February | – | 82.4% | – |
| March | – | 71.4% | – |
| April | 66.7% | 0.0% | ▼ 100.0% |
| May | 50.0% | 0.0% | ▼ 100.0% |
| June | 100.0% | 43.5% | ▼ 56.5% |
| July | – | 55.6% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 70.0% | – | – |
| December | 77.4% | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | 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 99.2% 235
- Cancelled 0.8% 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 |
|---|---|---|---|---|
| HOU BUR William P. Hobby Airport – Hollywood Burbank/Bob Hope Airport | 2,231 | 15.6 min | 77.6% | 58 |
| LAS RNO Harry Reid International Airport – Reno Tahoe International Airport | 556 | 23.9 min | 50.0% | 50 |
| LAS PSP Harry Reid International Airport – Palm Springs International Airport | 279 | 3.3 min | 85.7% | 42 |
| TPA DEN Tampa International Airport – Denver International Airport | 2,423 | 7.5 min | 79.4% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 69.6% | 0 |
| November 2024 | 18 | 18 | 83.3% | 0 |
| December 2024 | 14 | 13 | 76.9% | 1 |
| January 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 3 | 3 | 66.7% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 30 | 30 | 70.0% | 0 |
| December 2025 | 31 | 31 | 77.4% | 0 |
| January 2026 | 27 | 27 | 92.6% | 0 |
| February 2026 | 17 | 17 | 82.4% | 0 |
| March 2026 | 7 | 7 | 71.4% | 0 |
| April 2026 | 4 | 4 | 0.0% | 0 |
| May 2026 | 4 | 3 | 0.0% | 1 |
| June 2026 | 23 | 23 | 43.5% | 0 |
| July 2026 | 27 | 27 | 55.6% | 0 |