Nonstop flights from Washington to Houston

United Airlines flies this route 5 to 6 times a day.

IADWashington Dulles International

1,189 mi · 36 flights a week

IAHHouston George Bush Intercontinental

IADIAH

When they leave

Washington time

6:30a10:20pFirst departure 6:30 AM, last 10:20 PM

Two in the morning, 6:30 AM to 8:40 AM, then two in the afternoon, 12:50 PM to 2:53 PM, then two in the evening, 5:59 PM to 10:20 PM.

Every flight

Earliest first

6:30 AM→8:39 AMUnited AirlinesBoeing 737Daily
8:40 AM→10:59 AMUnited AirlinesBoeing 737Daily
12:50 PM→3:11 PMUnited AirlinesBoeing 737Daily
2:53 PM→5:11 PMUnited AirlinesBoeing 737Sat
5:59 PM→8:25 PMUnited AirlinesBoeing 737Daily
10:20 PM→12:45 AM⁺¹United AirlinesBoeing 737Daily

Schedules last checked Sep 19, 2026. Times are local.

Flying from Washington to Houston

United Airlines is the only airline flying nonstop from Washington to Houston, 5 to 6 times a day on the Boeing 737.

Flights run every day of the week, 6 on Saturdays and 5 on the other days. The first arrival in Houston is at 8:39 AM and the last at 12:45 AM the next day. The flight covers 1,189 miles.

Flying back, Houston to Washington has 37 nonstop flights a week. Ronald Reagan Washington National (DCA) and Baltimore (BWI) also have nonstop flights to Houston, 65 and 24 a week.

Return flights

Houston to WashingtonView

Every Washington and Houston airport

All Washington to Houston flightsView

Find the cheapest day to fly from Washington to Houston.

Schedules as of Oct 9, 2026.