WN4567
WN4567 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Phoenix to Houston. Of 214 departures recorded from October 2024 to July 2026, 67.5% left on time, according to the US BTS.
- On-time departures67.5%of 214 flights
- Average delay21.0 min
- July 202631▲ 675.0%vs July 2025
- Cancelled3.7%
- Legs flown under this number17
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 7 | – |
| February | – | 4 | – |
| March | 4 | 27 | ▲ 575.0% |
| April | 5 | 6 | ▲ 20.0% |
| May | 4 | – | – |
| June | 5 | 27 | ▲ 440.0% |
| July | 4 | 31 | ▲ 675.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 28 | – | – |
| 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 100.0% | – |
| February | – | 75.0% | – |
| March | 25.0% | 92.3% | ▲ 269.2% |
| April | 80.0% | 100.0% | ▲ 25.0% |
| May | 50.0% | – | – |
| June | 80.0% | 44.4% | ▼ 44.5% |
| July | 100.0% | 42.9% | ▼ 57.1% |
| August | 0.0% | – | – |
| September | – | – | – |
| October | 84.6% | – | in progress |
| November | 54.2% | – | – |
| December | 67.7% | – | – |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| 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 96.3% 206
- Cancelled 3.7% 8
Share of all recorded flights in the period, all legs. · Oct 31, 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 |
|---|---|---|---|---|
| PHX HOU Phoenix Sky Harbor International Airport – William P. Hobby Airport | 1,638 | 21.9 min | 64.8% | 58 |
| BWI MSY Baltimore/Washington International Thurgood Marshall Airport – Louis Armstrong New Orleans International Airport | 1,607 | 40.3 min | 43.6% | 58 |
| TPA DCA Tampa International Airport – Ronald Reagan Washington National Airport | 1,312 | 2.3 min | 93.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 100.0% | 0 |
| December 2024 | 3 | 3 | 100.0% | 0 |
| March 2025 | 4 | 4 | 25.0% | 0 |
| April 2025 | 5 | 5 | 80.0% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| June 2025 | 5 | 5 | 80.0% | 0 |
| July 2025 | 4 | 4 | 100.0% | 0 |
| August 2025 | 1 | 1 | 0.0% | 0 |
| October 2025 | 26 | 26 | 84.6% | 0 |
| November 2025 | 28 | 24 | 54.2% | 4 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 7 | 7 | 100.0% | 0 |
| February 2026 | 4 | 4 | 75.0% | 0 |
| March 2026 | 27 | 26 | 92.3% | 1 |
| April 2026 | 6 | 6 | 100.0% | 0 |
| June 2026 | 27 | 27 | 44.4% | 0 |
| July 2026 | 31 | 28 | 42.9% | 3 |