Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 4418 · Washington (DCA) → Houston (HOU)
Sold by Southwest. Still flying: 16 of the last 56 days (Tue, Wed).
Arrives on time43%within 15 minutes, of 16 flights
Cancelled12.5%of scheduled flights
An hour or more late14%of flights that operated
When late, on average81 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
- 18:35
- Arrives HOU
- 20:50
- Flight time
- 3h 15m
- Days flown, last 8 weeks
- 16 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 6–7 pm, wherever they’re going: 60% left within 15 minutes and 4.5% were cancelled (6,763 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.