1 airline flies nonstop from Washington Dulles International Airport to George Bush Intercontinental Airport. Washington Dulles International Airport (Washington, D.C.) to George Bush Intercontinental Airport (Houston).
Checking today’s fares with the airlines.
| Airline | From | To |
|---|---|---|
| United Airlines | IAD Washington Dulles International Airport | IAH George Bush Intercontinental Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
23 miles (37 km) from the city centre. 48.4 million passengers in 2024
| How | Route | Cost |
|---|---|---|
| Bus | METRO Route 500 IAH Downtown Direct to the George R. Brown Convention Center | $4.50 one way |
| Bus | METRO Route 102 Bush IAH Express via Greenspoint and I-45 | $1.25 (local fare) |
No passport or visa is needed for domestic travel, but a REAL ID-compliant license or another accepted ID is required to fly within the US.
Houston is 1 hour behind Washington, D.C.. Houston uses the US dollar (USD).
Read the Houston guide: when to go, weather, airports and tips
Nonstop flight times vary by airline and season; flights with a connection take longer.
As of October 2026, United Airlines flies this route nonstop.
About 1,189 miles (1,913 km) between the airports.
Houston is 1 hour behind Washington, D.C..
No passport or visa is needed for domestic travel, but a REAL ID-compliant license or another accepted ID is required to fly within the US.
METRO Route 500 IAH Downtown Direct to the George R. Brown Convention Center, $4.50 one way.
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.