WN3337
WN3337 (Southwest Airlines) is a multi-stop service on 29 routes, busiest Houston to Austin. Of 576 departures recorded from October 2024 to July 2026, 72.3% left on time, according to the US BTS.
- On-time departures72.3%of 576 flights
- Average delay17.4 min
- July 202623▼ 48.9%vs July 2025
- Cancelled0.4%
- Legs flown under this number29
according to the US BTS · Oct 12, 2024 → Jul 31, 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 | 9 | 33 | ▲ 266.7% |
| February | 10 | 28 | ▲ 180.0% |
| March | 5 | 8 | ▲ 60.0% |
| April | 27 | 35 | ▲ 29.6% |
| May | 37 | 44 | ▲ 18.9% |
| June | 40 | 23 | ▼ 42.5% |
| July | 45 | 23 | ▼ 48.9% |
| August | 24 | – | – |
| September | 21 | – | – |
| October | 21 | – | in progress |
| November | 40 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 173 | 194 | ▲ 12.1% |
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 | 55.6% | 87.5% | ▲ 57.5% |
| February | 80.0% | 88.9% | ▲ 11.1% |
| March | 100.0% | 62.5% | ▼ 37.5% |
| April | 77.8% | 85.7% | ▲ 10.2% |
| May | 81.1% | 72.7% | ▼ 10.3% |
| June | 55.0% | 39.1% | ▼ 28.9% |
| July | 37.8% | 52.2% | ▲ 38.1% |
| August | 45.8% | – | – |
| September | 76.2% | – | – |
| October | 81.0% | – | in progress |
| November | 87.5% | – | – |
| December | 80.9% | – | – |
| Year-to-date average (Jan–Jul) | 69.6% | 69.8% | ▲ 0.3% |
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 | 0 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 2 |
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 99.7% 574
- Cancelled 0.3% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| HOU AUS William P. Hobby Airport – Austin Bergstrom International Airport | 238 | 40.2 min | 41.0% | 61 |
| LAS STL Harry Reid International Airport – St. Louis Lambert International Airport | 2,202 | 3.8 min | 84.8% | 59 |
| ROC BWI Frederick Douglass Greater Rochester International Airport – Baltimore/Washington International Thurgood Marshall Airport | 447 | 5.7 min | 91.1% | 58 |
| PHX SJC Phoenix Sky Harbor International Airport – Mineta San Jose International Airport | 999 | 38.9 min | 40.5% | 42 |
| STL TPA St. Louis Lambert International Airport – Tampa International Airport | 1,400 | 17.1 min | 62.5% | 40 |
| TPA BWI Tampa International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,358 | 12.7 min | 91.4% | 35 |
| TPA STL Tampa International Airport – St. Louis Lambert International Airport | 1,400 | 8.0 min | 85.3% | 34 |
| OKC HOU OKC Will Rogers World Airport – William P. Hobby Airport | 675 | 7.6 min | 87.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 88.9% | 0 |
| November 2024 | 22 | 22 | 95.5% | 0 |
| December 2024 | 25 | 25 | 84.0% | 0 |
| January 2025 | 9 | 9 | 55.6% | 0 |
| February 2025 | 10 | 10 | 80.0% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| April 2025 | 27 | 27 | 77.8% | 0 |
| May 2025 | 37 | 37 | 81.1% | 0 |
| June 2025 | 40 | 40 | 55.0% | 0 |
| July 2025 | 45 | 45 | 37.8% | 0 |
| August 2025 | 24 | 24 | 45.8% | 0 |
| September 2025 | 21 | 21 | 76.2% | 0 |
| October 2025 | 21 | 21 | 81.0% | 0 |
| November 2025 | 40 | 40 | 87.5% | 0 |
| December 2025 | 47 | 47 | 80.9% | 0 |
| January 2026 | 33 | 32 | 87.5% | 1 |
| February 2026 | 28 | 27 | 88.9% | 1 |
| March 2026 | 8 | 8 | 62.5% | 0 |
| April 2026 | 35 | 35 | 85.7% | 0 |
| May 2026 | 44 | 44 | 72.7% | 0 |
| June 2026 | 23 | 23 | 39.1% | 0 |
| July 2026 | 23 | 23 | 52.2% | 0 |