3 airlines fly nonstop from Washington, D.C. to Houston.
Checking today’s fares with the airlines.
| Airline | From | To |
|---|---|---|
| United Airlines | IAD Washington Dulles International Airport | IAH George Bush Intercontinental Airport |
| American Airlines | DCA Ronald Reagan Washington National Airport | IAH George Bush Intercontinental Airport |
| Southwest Airlines | DCA Ronald Reagan Washington National Airport | HOU William P. Hobby Airport |
| United Airlines | DCA Ronald Reagan Washington National Airport | IAH George Bush Intercontinental Airport |
| Southwest Airlines | BWI Baltimore/Washington International Thurgood Marshall Airport | HOU William P. Hobby Airport |
| United Airlines | BWI Baltimore/Washington International Thurgood Marshall 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) |
7 miles (11 km) from the city centre. 14.6 million passengers in 2024
| How | Route | Cost |
|---|---|---|
| Bus | METRO bus 40 to downtown | $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, American Airlines and Southwest Airlines fly this route nonstop.
Nonstop flights leave from Washington Dulles International Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore/Washington International Thurgood Marshall Airport (BWI) and arrive at George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).
About 1,219 miles (1,961 km), measured between the city centres.
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.