Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 18 · Houston (HOU) → Dallas (DAL)
Sold by Southwest. Not in the Jun 6 – Jul 31, 2026 schedule; last flew 2026-05-30.
Arrives on time82%within 15 minutes, of 29 flights
Cancelled3.4%of scheduled flights
An hour or more late7%of flights that operated
When late, on average68 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves HOU
- 10:50
- Arrives DAL
- 12:00
- Flight time
- 1h 10m
- 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 HOU
All flights leaving Houston (HOU) at 10–11 am, wherever they’re going: 85% left within 15 minutes and 1.1% were cancelled (4,025 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.