WN4704
WN4704 (Southwest Airlines) is a multi-stop service on 14 routes, busiest Harlingen to Houston. Of 277 departures recorded from October 2024 to July 2026, 71.6% left on time, according to the US BTS.
- On-time departures71.6%of 277 flights
- Average delay13.6 min
- July 202630▲ 130.8%vs July 2025
- Cancelled0.7%
- Legs flown under this number14
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 | 1 | 27 | ▲ 2,600.0% |
| February | – | 18 | – |
| March | 18 | 10 | ▼ 44.4% |
| April | 8 | 1 | ▼ 87.5% |
| May | 3 | – | – |
| June | 13 | 27 | ▲ 107.7% |
| July | 13 | 30 | ▲ 130.8% |
| August | 26 | – | – |
| September | 26 | – | – |
| October | 22 | – | in progress |
| November | 4 | – | – |
| December | 2 | – | – |
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 | 0.0% | 88.9% | – |
| February | – | 72.2% | – |
| March | 94.1% | 66.7% | ▼ 29.2% |
| April | 100.0% | 100.0% | 0.0% |
| May | 100.0% | – | – |
| June | 76.9% | 59.3% | ▼ 23.0% |
| July | 61.5% | 50.0% | ▼ 18.8% |
| August | 65.4% | – | – |
| September | 73.1% | – | – |
| October | 63.6% | – | in progress |
| November | 75.0% | – | – |
| December | 50.0% | – | – |
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 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | 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 99.3% 275
- Cancelled 0.7% 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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| HRL HOU Valley International Airport – William P. Hobby Airport | 446 | 19.5 min | 54.4% | 57 |
| STL CLE St. Louis Lambert International Airport – Cleveland Hopkins International Airport | 783 | 16.6 min | 68.0% | 50 |
| BUF TPA Buffalo Niagara International Airport – Tampa International Airport | 1,699 | 10.7 min | 80.9% | 47 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 100.0% | 0 |
| November 2024 | 14 | 14 | 85.7% | 0 |
| December 2024 | 4 | 4 | 25.0% | 0 |
| January 2025 | 1 | 1 | 0.0% | 0 |
| March 2025 | 18 | 17 | 94.1% | 1 |
| April 2025 | 8 | 8 | 100.0% | 0 |
| May 2025 | 3 | 3 | 100.0% | 0 |
| June 2025 | 13 | 13 | 76.9% | 0 |
| July 2025 | 13 | 13 | 61.5% | 0 |
| August 2025 | 26 | 26 | 65.4% | 0 |
| September 2025 | 26 | 26 | 73.1% | 0 |
| October 2025 | 22 | 22 | 63.6% | 0 |
| November 2025 | 4 | 4 | 75.0% | 0 |
| December 2025 | 2 | 2 | 50.0% | 0 |
| January 2026 | 27 | 27 | 88.9% | 0 |
| February 2026 | 18 | 18 | 72.2% | 0 |
| March 2026 | 10 | 9 | 66.7% | 1 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 27 | 27 | 59.3% | 0 |
| July 2026 | 30 | 30 | 50.0% | 0 |