WN433
WN433 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Tampa to Houston. Of 684 departures recorded from October 2024 to July 2026, 83.4% left on time, according to the US BTS.
- On-time departures83.4%of 684 flights
- Average delay7.5 min
- July 202619▼ 36.7%vs July 2025
- Cancelled0.7%
- Legs flown under this number35
according to the US BTS · Oct 12, 2024 → Jul 29, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 46 | ▲ 48.4% |
| February | 28 | 37 | ▲ 32.1% |
| March | 31 | 21 | ▼ 32.3% |
| April | 44 | 27 | ▼ 38.6% |
| May | 48 | 31 | ▼ 35.4% |
| June | 33 | 30 | ▼ 9.1% |
| July | 30 | 19 | ▼ 36.7% |
| August | 25 | – | – |
| September | 25 | – | – |
| October | 26 | – | in progress |
| November | 36 | – | – |
| December | 41 | – | – |
| Year to date (Jan–Jul) | 245 | 211 | ▼ 13.9% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 93.1% | 91.3% | ▼ 1.9% |
| February | 92.9% | 89.2% | ▼ 4.0% |
| March | 96.8% | 90.5% | ▼ 6.5% |
| April | 86.4% | 48.2% | ▼ 44.2% |
| May | 89.6% | 45.2% | ▼ 49.6% |
| June | 96.9% | 70.0% | ▼ 27.7% |
| July | 96.7% | 79.0% | ▼ 18.3% |
| August | 88.0% | – | – |
| September | 80.0% | – | – |
| October | 57.7% | – | in progress |
| November | 80.0% | – | – |
| December | 87.8% | – | – |
| Year-to-date average (Jan–Jul) | 93.2% | 73.3% | ▼ 21.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 0 | ▼ 100.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.3% 679
- Cancelled 0.7% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| TPA HOU Tampa International Airport – William P. Hobby Airport | 1,255 | 3.1 min | 93.3% | 123 |
| MKE DEN General Mitchell International Airport – Denver International Airport | 1,438 | 1.1 min | 94.9% | 60 |
| DEN RNO Denver International Airport – Reno Tahoe International Airport | 1,291 | 31.7 min | 40.8% | 49 |
| HOU ATL William P. Hobby Airport – Hartsfield Jackson Atlanta International Airport | 1,118 | 6.3 min | 84.4% | 46 |
| OAK SEA Oakland San Francisco Bay Airport – Seattle–Tacoma International Airport | 1,082 | 2.0 min | 86.7% | 45 |
| HOU MAF William P. Hobby Airport – Midland International Air and Space Port | 709 | 9.7 min | 87.2% | 39 |
| SJU MCO Luis Munoz Marin International Airport – Orlando International Airport | 1,913 | 0.2 min | 97.0% | 33 |
| BUR SLC Hollywood Burbank/Bob Hope Airport – Salt Lake City International Airport | 923 | 11.7 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 57.1% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 31 | 30 | 90.0% | 1 |
| January 2025 | 31 | 29 | 93.1% | 2 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 31 | 31 | 96.8% | 0 |
| April 2025 | 44 | 44 | 86.4% | 0 |
| May 2025 | 48 | 48 | 89.6% | 0 |
| June 2025 | 33 | 32 | 96.9% | 1 |
| July 2025 | 30 | 30 | 96.7% | 0 |
| August 2025 | 25 | 25 | 88.0% | 0 |
| September 2025 | 25 | 25 | 80.0% | 0 |
| October 2025 | 26 | 26 | 57.7% | 0 |
| November 2025 | 36 | 35 | 80.0% | 1 |
| December 2025 | 41 | 41 | 87.8% | 0 |
| January 2026 | 46 | 46 | 91.3% | 0 |
| February 2026 | 37 | 37 | 89.2% | 0 |
| March 2026 | 21 | 21 | 90.5% | 0 |
| April 2026 | 27 | 27 | 48.2% | 0 |
| May 2026 | 31 | 31 | 45.2% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 19 | 19 | 79.0% | 0 |