WN1628
WN1628 (Southwest Airlines) is a multi-stop service on 3 routes, busiest Dallas to Houston. Of 492 departures recorded from October 2024 to July 2026, 94.3% left on time, according to the US BTS.
- On-time departures94.3%of 492 flights
- Average delay0.9 min
- July 202631▲ 19.2%vs July 2025
- Cancelled0.8%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 10 | 9 | ▼ 10.0% |
| February | 15 | 15 | 0.0% |
| March | 28 | 29 | ▲ 3.6% |
| April | 27 | 30 | ▲ 11.1% |
| May | 25 | 30 | ▲ 20.0% |
| June | 26 | 30 | ▲ 15.4% |
| July | 26 | 31 | ▲ 19.2% |
| August | 22 | – | – |
| September | 22 | – | – |
| October | 26 | – | in progress |
| November | 19 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 157 | 174 | ▲ 10.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 100.0% | 0.0% |
| February | 100.0% | 93.3% | ▼ 6.7% |
| March | 92.9% | 96.6% | ▲ 4.0% |
| April | 92.6% | 93.3% | ▲ 0.8% |
| May | 96.0% | 89.7% | ▼ 6.6% |
| June | 84.0% | 93.3% | ▲ 11.1% |
| July | 96.2% | 100.0% | ▲ 4.0% |
| August | 95.5% | – | – |
| September | 100.0% | – | – |
| October | 96.2% | – | in progress |
| November | 94.7% | – | – |
| December | 92.9% | – | – |
| Year-to-date average (Jan–Jul) | 94.5% | 95.2% | ▲ 0.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 100.0% |
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% 488
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL HOU Dallas Love Field – William P. Hobby Airport | 386 | -0.4 min | 94.6% | 486 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 22 | 22 | 100.0% | 0 |
| December 2024 | 18 | 18 | 72.2% | 0 |
| January 2025 | 10 | 10 | 100.0% | 0 |
| February 2025 | 15 | 15 | 100.0% | 0 |
| March 2025 | 28 | 28 | 92.9% | 0 |
| April 2025 | 27 | 27 | 92.6% | 0 |
| May 2025 | 25 | 25 | 96.0% | 0 |
| June 2025 | 26 | 25 | 84.0% | 1 |
| July 2025 | 26 | 26 | 96.2% | 0 |
| August 2025 | 22 | 22 | 95.5% | 0 |
| September 2025 | 22 | 22 | 100.0% | 0 |
| October 2025 | 26 | 26 | 96.2% | 0 |
| November 2025 | 19 | 19 | 94.7% | 0 |
| December 2025 | 15 | 14 | 92.9% | 1 |
| January 2026 | 9 | 8 | 100.0% | 1 |
| February 2026 | 15 | 15 | 93.3% | 0 |
| March 2026 | 29 | 29 | 96.6% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 30 | 29 | 89.7% | 1 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 100.0% | 0 |