Distance From Hattabara Dam Heliport to Tribhuvan International Airport

The distance from Hattabara Dam Heliport () to Tribhuvan International Airport (KTM) is 2839 miles or 4569 kilometers or 2466 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 Sera ( Japan ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Sera and Kathmandu takes around 6 hours 31 minutes.

Estimated flight time from Hattabara Dam Heliport, Sera, Japan to Tribhuvan International Airport, Kathmandu, Nepal is 6 hours 31 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 • - KTM

Kilometers		4569 km
Statute Miles		2839 miles
Nautical Miles		2466 nm
Avg. Time of Flight		6 hours 31 minutes

Hattabara Dam Heliport to Tribhuvan International Airport Flight Route Map - to KTM Flight Path

Location of Hattabara Dam Heliport & Tribhuvan International Airport is given below.
Click the map to view Sera to Kathmandu nonstop flight path and travel direction.

Click to see flight route on Google Map between Sera, Japan and Kathmandu, Nepal. .

Nonstop flight route between Sera, Japan and Kathmandu, Nepal.

Time Difference Between the Airports • - KTM

Time difference between Sera (Japan) and Kathmandu (Nepal) is 3 Hours 15 Minutes.
Kathmandu time is 3 Hours 15 Minutes behind Sera.

Location	Local Time
Sera (Japan)	2026-11-01, 20:51:35 JST
Kathmandu (Nepal)	2026-11-01, 17:36:35 +0545

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

Hattabara Dam Heliport ( / ) Sera, Japan

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal