Washington to Houston
IADIAH
Fly from Washington to Houston starting at USD 63 with F9.
Best fare available on May 18, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Houston cheapest flights this week
13 May
F9
17:07IAD
09:50IAH
1 Stop$76VIEW DEAL
18 May
F9
07:40IAD
23:50IAH
1 Stop$63VIEW DEAL
17 Jun
F9
07:30IAD
23:48IAH
1 Stop$68VIEW DEAL
22 Jun
F9
20:57IAD
23:48IAH
1 Stop$72VIEW DEAL
22 Jul
F9
18:22IAD
15:51IAH
1 Stop$118VIEW DEAL
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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