WN4725
WN4725 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Houston to Denver. Of 300 departures recorded from October 2024 to July 2026, 74.2% left on time, according to the US BTS.
- On-time departures74.2%of 300 flights
- Average delay14.2 min
- July 202616▲ 0.0%vs July 2025
- Cancelled0.7%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | – | – |
| February | 32 | 11 | ▼ 65.6% |
| March | 31 | 24 | ▼ 22.6% |
| April | 7 | 6 | ▼ 14.3% |
| May | – | – | – |
| June | 16 | 15 | ▼ 6.3% |
| July | 16 | 16 | 0.0% |
| August | 3 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 85.2% | – | – |
| February | 71.9% | 72.7% | ▲ 1.2% |
| March | 83.9% | 91.7% | ▲ 9.3% |
| April | 50.0% | 100.0% | ▲ 100.0% |
| May | – | – | – |
| June | 37.5% | 93.3% | ▲ 148.9% |
| July | 25.0% | 87.5% | ▲ 250.0% |
| August | 0.0% | – | – |
| September | – | – | – |
| October | 60.0% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
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 periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | – | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | – | – | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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% 298
- Cancelled 0.7% 2
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| HOU DEN William P. Hobby Airport – Denver International Airport | 1,422 | 6.4 min | 83.2% | 108 |
| SAN BOI San Diego International Airport – Boise Air Terminal/Gowen Field | 1,207 | 31.5 min | 28.6% | 35 |
| ORD BNA Chicago O'Hare International Airport – Nashville International Airport | 660 | 28.7 min | 61.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 80.0% | 0 |
| November 2024 | 25 | 25 | 92.0% | 0 |
| December 2024 | 29 | 29 | 75.9% | 0 |
| January 2025 | 28 | 27 | 85.2% | 1 |
| February 2025 | 32 | 32 | 71.9% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 7 | 6 | 50.0% | 1 |
| June 2025 | 16 | 16 | 37.5% | 0 |
| July 2025 | 16 | 16 | 25.0% | 0 |
| August 2025 | 3 | 3 | 0.0% | 0 |
| October 2025 | 30 | 30 | 60.0% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| February 2026 | 11 | 11 | 72.7% | 0 |
| March 2026 | 24 | 24 | 91.7% | 0 |
| April 2026 | 6 | 6 | 100.0% | 0 |
| June 2026 | 15 | 15 | 93.3% | 0 |
| July 2026 | 16 | 16 | 87.5% | 0 |