Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 1433 · Washington (DCA) → Houston (HOU)
Sold by Southwest. Still flying: 46 of the last 56 days (Mon–Sat).
Arrives on time47%within 15 minutes, of 48 flights
Cancelled2.1%of scheduled flights
An hour or more late11%of flights that operated
When late, on average53 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Houston is 1 h behind Washington).
- Leaves DCA
- 12:48
- Arrives HOU
- 14:58
- Flight time
- 3h 10m
- Days flown, last 8 weeks
- 46 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 DCA
All flights leaving Washington (DCA) at 12–1 pm, wherever they’re going: 76% left within 15 minutes and 2.2% were cancelled (7,406 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.