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
24 Apr
F9
09:21IAD
--:--IAH
1 Stop$126VIEW DEAL
27 Apr
MX
14:58IAD
--:--IAH
3 Stop$182VIEW DEAL
29 Apr
F9
06:20IAD
--:--IAH
1 Stop$123VIEW DEAL
30 Apr
F9
06:10IAD
--:--IAH
1 Stop$126VIEW DEAL
1 May
F9
06:00IAD
--:--IAH
1 Stop$129VIEW DEAL
5 May
F9
07:30IAD
--:--IAH
1 Stop$99VIEW DEAL
13 May
F9
17:07IAD
--:--IAH
1 Stop$76VIEW DEAL
18 May
F9
07:40IAD
--:--IAH
1 Stop$63VIEW DEAL
17 Jun
F9
07:30IAD
--:--IAH
1 Stop$68VIEW DEAL
22 Jun
F9
20:57IAD
--:--IAH
1 Stop$72VIEW DEAL
Washington to Houston monthly flight fare trend
Apr
from USD 123
May
from USD 63
Jun
from USD 68
Jul
from USD 118
Aug
No flights
Sep
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
