tourround trip flights seattle to houstonShare on FacebookShare on Twitter494IMAGESDirect (non-stop) flights from Seattle to HoustonRound-trip flights drop below $100 with Southwest's 72-hour saleAirfare DealGet cheap flights from Seattle to HoustonSouthwest Airlines Adds Houston Nonstop for the HolidaysTN2543 Flight Status Air Tahiti Nui: Seattle to Houston (THT2543)
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