Routes · From IAH

Houston (IAH) to Washington (IAD) flights

Nonstop from George Bush Intercontinental to Washington Dulles International: distance, flying time, which airlines fly it and how often.

Distance

1,913km

1,189 mi, great circle

Flying time

2h 57m

typical, gate to gate

Flights a day

6.7

average, November 2026

Airlines

passenger airlines

Airlines flying IAH to IAD

United Airlines

Also in the data (cargo, charter or a foreign airline on a domestic route): NetJets Aviation.

Route map

The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.

Cheapest recent fare

Fares found in recent searches load here. You can also compare IAH to IAD fares by month.

Both directions

Related guides

Cruise & air · 6 min read

Closest Airport to Galveston Cruise Terminal: IAH vs HOU

The closest airport to the Galveston cruise terminal is Hobby (HOU), about 42 miles away. See how it compares with IAH on cost, time and flight options.

October 15, 2026

Frequently asked questions

How long is the flight from Houston to Washington?

About 2h 57m gate to gate for the 1,913 km (1,189 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.

Which airlines fly nonstop from IAH to IAD?

United Airlines, with about 6.7 flights a day between them in our data (AeroDataBox, November 2026).