Direct (nonstop) flights from Houston to Dulles
1 airline flys nonstop from George Bush Intcntl Houston (IAH) to Washington Dulles International (IAD). It's 1,191 miles (1,916 km), about 3h 8m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Houston to Dulles with one stop · direct emits 201 kg CO₂ per passenger
Looking for the return flight?
IAD → IAH: Flights from Dulles to HoustonOther direct flights from Houston
Direct flights from Dulles (IAD)
Frequently Asked Questions
How long is the direct flight from Houston to Dulles?
A nonstop flight from Houston (IAH) to Dulles (IAD) takes approximately 3 hours and 8 minutes. The distance is 1,191 miles (1,916 km).
Which airlines fly nonstop from Houston to Dulles?
Just United Airlines.
Is there a nonstop flight from Houston to Dulles?
Yes. 1 airline: United Airlines.
How far is Houston from Dulles?
The flight distance from Houston to Dulles is 1,191 miles (1,916 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Houston to Dulles?
At 3h 8m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Houston to Dulles?
Roughly 201 kg CO2 per passenger one-way. That's about the same as driving 1,005 km.
Is the return flight from Dulles to Houston also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Houston to Dulles?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at George Bush Intcntl Houston for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.