WN4788
WN4788 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Dallas to Harlingen. Of 193 departures recorded from October 2024 to July 2026, 73.4% left on time, according to the US BTS.
- On-time departures73.4%of 193 flights
- Average delay14.4 min
- July 202617▲ 112.5%vs July 2025
- Cancelled0.5%
- Legs flown under this number24
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 | 6 | 4 | ▼ 33.3% |
| February | – | 4 | – |
| March | 16 | 5 | ▼ 68.8% |
| April | 7 | 1 | ▼ 85.7% |
| May | 4 | – | – |
| June | 9 | 16 | ▲ 77.8% |
| July | 8 | 17 | ▲ 112.5% |
| August | 21 | – | – |
| September | 22 | – | – |
| October | 5 | – | in progress |
| November | 1 | – | – |
| December | 11 | – | – |
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 | 33.3% | 100.0% | ▲ 200.0% |
| February | – | 75.0% | – |
| March | 81.3% | 25.0% | ▼ 69.2% |
| April | 85.7% | 100.0% | ▲ 16.7% |
| May | 50.0% | – | – |
| June | 77.8% | 62.5% | ▼ 19.6% |
| July | 87.5% | 82.4% | ▼ 5.9% |
| August | 90.5% | – | – |
| September | 95.5% | – | – |
| October | 40.0% | – | in progress |
| November | 100.0% | – | – |
| December | 45.5% | – | – |
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 | 0 | 1 | – |
| 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 99.5% 192
- Cancelled 0.5% 1
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL HRL Dallas Love Field – Valley International Airport | 740 | 17.1 min | 72.7% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 70.0% | 0 |
| November 2024 | 7 | 7 | 85.7% | 0 |
| December 2024 | 19 | 19 | 52.6% | 0 |
| January 2025 | 6 | 6 | 33.3% | 0 |
| March 2025 | 16 | 16 | 81.3% | 0 |
| April 2025 | 7 | 7 | 85.7% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| June 2025 | 9 | 9 | 77.8% | 0 |
| July 2025 | 8 | 8 | 87.5% | 0 |
| August 2025 | 21 | 21 | 90.5% | 0 |
| September 2025 | 22 | 22 | 95.5% | 0 |
| October 2025 | 5 | 5 | 40.0% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| December 2025 | 11 | 11 | 45.5% | 0 |
| January 2026 | 4 | 4 | 100.0% | 0 |
| February 2026 | 4 | 4 | 75.0% | 0 |
| March 2026 | 5 | 4 | 25.0% | 1 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 16 | 16 | 62.5% | 0 |
| July 2026 | 17 | 17 | 82.4% | 0 |