Distance From Dandugama Seaplane Base to Tokyo Haneda International Airport, DGM - HND Distance

The distance from Dandugama Seaplane Base (DGM) to Tokyo Haneda International Airport (HND) is 4251 miles or 6842 kilometers or 3692 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 Colombo ( Sri Lanka ) to Tokyo ( Japan )?

A one-way nonstop (direct) flight between Colombo and Tokyo takes around 9 hours 46 minutes.

Estimated flight time from Dandugama Seaplane Base, Colombo, Sri Lanka to Tokyo Haneda International Airport, Tokyo, Japan is 9 hours 46 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 • DGM - HND

Kilometers		6842 km
Statute Miles		4251 miles
Nautical Miles		3692 nm
Avg. Time of Flight		9 hours 46 minutes

Dandugama Seaplane Base to Tokyo Haneda International Airport Flight Route Map - DGM to HND Flight Path

Location of Dandugama Seaplane Base & Tokyo Haneda International Airport is given below.
Click the map to view Colombo to Tokyo nonstop flight path and travel direction.

Click to see flight route on Google Map between Colombo, Sri Lanka and Tokyo, Japan. .

Nonstop flight route between Colombo, Sri Lanka and Tokyo, Japan.

Time Difference Between the Airports • DGM - HND

Time difference between Colombo (Sri Lanka) and Tokyo (Japan) is 3 Hours 30 Minutes.
Tokyo time is 3 Hours 30 Minutes ahead of Colombo.

Location	Local Time
Colombo (Sri Lanka)	2026-05-04, 04:05:52 +0530
Tokyo (Japan)	2026-05-04, 07:35:52 JST

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

Dandugama Seaplane Base (DGM / ) Colombo, Sri Lanka

Destination

Tokyo Haneda International Airport (HND / RJTT) Tokyo, Japan