Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 43 · Dallas (DAL) → Houston (HOU)
Sold by Southwest. Not in the Jun 6 – Jul 31, 2026 schedule; last flew 2026-05-31.
Arrives on time73%within 15 minutes, of 28 flights
Cancelled7.1%of scheduled flights
An hour or more late8%of flights that operated
When late, on average55 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves DAL
- 17:00
- Arrives HOU
- 18:18
- Flight time
- 1h 15m
- Days flown, last 8 weeks
- 0 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at DAL
All flights leaving Dallas (DAL) at 5–6 pm, wherever they’re going: 53% left within 15 minutes and 1.2% were cancelled (3,801 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.