Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 3671 · Houston (HOU) → Las Vegas (LAS)
Sold by Southwest. Still flying: 12 of the last 56 days (Mon, Thu, Fri).
Arrives on time100%within 15 minutes, of 12 flights
Cancelled0.0%of scheduled flights
An hour or more late0%of flights that operated
When late, on average–late, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Las Vegas is 2 h behind Houston).
- Leaves HOU
- 05:30
- Arrives LAS
- 06:30
- Flight time
- 3h 00m
- Days flown, last 8 weeks
- 12 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 5–6 am, wherever they’re going: 94% left within 15 minutes and 0.5% were cancelled (1,925 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.