Direct flights from Seattle to Houston
7 nonstop flights a week on 1 airline. Zero layovers — one hop from SEA to HOU.
Flight time: about 3h47m nonstop
Which days does it fly?
When does it fly?
Departure times in Seattle local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Southwest SWA4609 | 8:08a | 3h58m | Sat |
| Southwest SWA3744 | 9:09a | 3h43m | Wed |
| Southwest SWA3744 | 9:52a | 3h36m | Tue |
| Southwest SWA4609 | 11:55a | 3h52m | Sun |
| Southwest SWA4609 | 12:34p | 4h8m | Thu |
| Southwest SWA4609 | 12:38p | 3h47m | Fri |
| Southwest SWA4609 | 1:13p | 3h35m | Mon |
Southwest
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The route
One hop: SEA → HOUDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Seattle (SEA) to Houston (HOU)
Seattle–Tacoma International Airport (SEA) has 7 nonstop flights a week to Houston (HOU), operated by Southwest. No layovers, no connections — one hop out of SEA and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Seattle to Houston?
The nonstop flight from Seattle (SEA) to Houston (HOU) takes about 3h47m in the air, based on recently observed nonstop departures.