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Houston (IAH) to Washington (IAD) flights

There are direct flights from George Bush Intercontinental Houston Airport to Washington Dulles International Airport, sold by one airline: United Airlines. The distance is 1,913 km, about 2h 50m in the air. There are also 29 one-stop options, via airports such as Chicago, Dallas-Fort Worth and Atlanta.

Live fares for IAH → IADSee all routes on the map
1,913 kmdistance
~2h 50mdirect flight time (estimate)
1direct airline
29one-stop options

Direct flights from Houston to Washington

RouteAirlines (incl. codeshares)DistanceTime (est.)
IAH → IADUnited Airlines1,913 km~2h 50m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
ORD ChicagoAmerican Airlines and Frontier Airlines then United Airlines2,436 km~5h 40m
DFW Dallas-Fort WorthAmerican Airlines and United Airlines then American Airlines and United Airlines2,244 km~5h 25m
ATL AtlantaAir France and ITA Airways then Air France and Aeromexico1,967 km~5h 5m
CLT CharlotteAmerican Airlines and United Airlines then American Airlines and United Airlines1,984 km~5h 5m
PHL PhiladelphiaAmerican Airlines and United Airlines then United Airlines2,346 km~5h 30m
CLE ClevelandUnited Airlines then United Airlines2,219 km~5h 20m
STL St. LouisUnited Airlines then United Airlines2,193 km~5h 20m
BNA NashvilleUnited Airlines then United Airlines1,928 km~5h
DTW DetroitUnited Airlines then United Airlines2,347 km~5h 30m
AUS AustinUnited Airlines then United Airlines2,310 km~5h 30m
MSY New OrleansAir Canada and Lufthansa then Air Canada and Lufthansa2,026 km~5h 10m
RDU Raleigh-durhamUnited Airlines then United Airlines2,036 km~5h 10m

More from Houston and Washington

Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.