Washington to Houston
IADIAH
Fly from Washington to Houston starting at USD 68 with Frontier Airlines.
Best fare available on Jun 17, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Houston cheapest flights this week
Washington to Houston monthly flight fare trend
May
from USD 63
Jun
from USD 68
Jul
from USD 118
Aug
No flights
Sep
No flights
Oct
No flights
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
Houston
George Bush Intercontinental Houston Airport (IAH)
Houston, IAH
Zone
Chicago
Elev
97 ft
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