WN4750
WN4750 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Tucson to Houston. Of 281 departures recorded from October 2024 to July 2026, 83.5% left on time, according to the US BTS.
- On-time departures83.5%of 281 flights
- Average delay8.0 min
- July 202617
- Cancelled0.7%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods12 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 33 | 39 | ▲ 18.2% |
| February | 24 | 44 | ▲ 83.3% |
| March | 4 | 13 | ▲ 225.0% |
| April | – | 2 | – |
| May | – | – | – |
| June | – | 15 | – |
| July | – | 17 | – |
| August | – | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 6 | – | – |
| 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 periods12 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.9% | 79.5% | ▼ 5.2% |
| February | 91.7% | 79.6% | ▼ 13.2% |
| March | 100.0% | 92.3% | ▼ 7.7% |
| April | – | 100.0% | – |
| May | – | – | – |
| June | – | 80.0% | – |
| July | – | 100.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | 80.8% | – | in progress |
| November | 83.3% | – | – |
| December | 54.6% | – | – |
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 periods12 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| 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% 279
- 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 |
|---|---|---|---|---|
| TUS HOU Tucson International Airport – William P. Hobby Airport | 1,518 | 7.6 min | 88.9% | 65 |
| PHX SNA Phoenix Sky Harbor International Airport – John Wayne Orange County International Airport | 544 | 6.8 min | 83.0% | 53 |
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 0.7 min | 90.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 3 | 3 | 100.0% | 0 |
| November 2024 | 24 | 24 | 79.2% | 0 |
| December 2024 | 20 | 20 | 90.0% | 0 |
| January 2025 | 33 | 31 | 83.9% | 2 |
| February 2025 | 24 | 24 | 91.7% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 26 | 26 | 80.8% | 0 |
| November 2025 | 6 | 6 | 83.3% | 0 |
| December 2025 | 11 | 11 | 54.6% | 0 |
| January 2026 | 39 | 39 | 79.5% | 0 |
| February 2026 | 44 | 44 | 79.6% | 0 |
| March 2026 | 13 | 13 | 92.3% | 0 |
| April 2026 | 2 | 2 | 100.0% | 0 |
| June 2026 | 15 | 15 | 80.0% | 0 |
| July 2026 | 17 | 17 | 100.0% | 0 |