Distance From Long Thanh International Airport (under construction) to Washington Dulles International Airport

The distance from Long Thanh International Airport (under construction) () to Washington Dulles International Airport (IAD) is 8990 miles or 14467 kilometers or 7807 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Ho Chi Minh City (Long Thanh) ( Vietnam ) to Dulles ( United States )?

A one-way nonstop (direct) flight between Ho Chi Minh City (Long Thanh) and Dulles takes around 20 hours 40 minutes.

Estimated flight time from Long Thanh International Airport (under construction), Ho Chi Minh City (Long Thanh), Vietnam to Washington Dulles International Airport, Dulles, United States is 20 hours 40 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - IAD

Kilometers		14467 km
Statute Miles		8990 miles
Nautical Miles		7807 nm
Avg. Time of Flight		20 hours 40 minutes

Long Thanh International Airport (under construction) to Washington Dulles International Airport Flight Route Map - to IAD Flight Path

Location of Long Thanh International Airport (under construction) & Washington Dulles International Airport is given below.
Click the map to view Ho Chi Minh City (Long Thanh) to Dulles nonstop flight path and travel direction.

Click to see flight route on Google Map between Ho Chi Minh City (Long Thanh), Vietnam and Dulles, United States. .

Nonstop flight route between Ho Chi Minh City (Long Thanh), Vietnam and Dulles, United States.

Time Difference Between the Airports • - IAD

Time difference between Ho Chi Minh City (Long Thanh) (Vietnam) and Dulles (United States) is 12 Hours.
Dulles time is 12 Hours behind Ho Chi Minh City (Long Thanh).

Location	Local Time
Ho Chi Minh City (Long Thanh) (Vietnam)	2025-12-15, 22:01:18 +07
Dulles (United States)	2025-12-15, 10:01:18 EST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Long Thanh International Airport (under construction) ( / ) Ho Chi Minh City (Long Thanh), Vietnam

Destination

Washington Dulles International Airport (IAD / KIAD) Dulles, United States