United Airlines
Star Alliance
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United States
Washington Dulles International Airport
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United States
George Bush Intercontinental Airport
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Scan through all non-stop flights from Washington to Houston. The full flight schedule below gives an overview of all non-stop flights from IAD to IAH, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Houston is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Houston any time of the year, but the best months to explore are from to and from to .
Currently, there is only one airline operating non-stop flights from Washington IAD to Houston IAH, which is United Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their IAD IAH flight schedule.
Flights from IAD to IAH are operated 3 times a week, with an average of 1 flight per day. Departure times vary between 06:00 - 22:20. The earliest flight departs at 06:00, the last flight departs at 22:20. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Washington to Houston takes 3 hours and 27 minutes. The flight distance between Washington and Houston is 1,188 miles (or 1,912 km).
There are 2 airports in Houston: George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).
There are 3 flights per week flying from Washington to Houston (as of March 2026).
3 hours and 27 minutes is the average flight time from Washington to Houston.
The distance from Washington to Houston is 1,188 miles (1,912 kilometers).
United Airlines is the only airline flying nonstop from Washington to Houston.
Star Alliance is currently the only alliance flying nonstop from Washington to Houston.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Washington to Houston:
The earliest flight departs at 06:00 from Washington and arrives at 08:27 at Houston.
The latest flight departs at 22:20 from Washington and arrives at 00:45 at Houston.
1,188 miles (1,912 km) · 3h 27m
06:00
08:27
United Airlines
Star Alliance
UA 1131
United Airlines
Boeing 737-900
Y
W
J
F
08:30
11:03
United Airlines
Star Alliance
UA 1524
United Airlines
Boeing 737-900
Y
W
J
F
12:55
15:23
United Airlines
Star Alliance
UA 1535
United Airlines
Boeing 737-900
Y
W
J
F
12:55
15:25
United Airlines
Star Alliance
UA 1535
United Airlines
Airbus A319
Y
W
J
F
17:37
20:10
United Airlines
Star Alliance
UA 2217
United Airlines
Boeing 737-900
Y
W
J
F
17:37
20:10
United Airlines
Star Alliance
UA 2217
United Airlines
Boeing 737-900
Y
W
J
F
22:11
00:30
United Airlines
Star Alliance
UA 2437
United Airlines
Boeing 737-900
Y
W
J
F
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