Distance From C 821 Heliport to Tribhuvan International Airport

The distance from C 821 Heliport () to Tribhuvan International Airport (KTM) is 2609 miles or 4199 kilometers or 2266 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 Wonhyo-san Mt. ( South Korea ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Wonhyo-san Mt. and Kathmandu takes around 5 hours 59 minutes.

Estimated flight time from C 821 Heliport, Wonhyo-san Mt., South Korea to Tribhuvan International Airport, Kathmandu, Nepal is 5 hours 59 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		4199 km
Statute Miles		2609 miles
Nautical Miles		2266 nm
Avg. Time of Flight		5 hours 59 minutes

C 821 Heliport to Tribhuvan International Airport Flight Route Map - to KTM Flight Path

Location of C 821 Heliport & Tribhuvan International Airport is given below.
Click the map to view Wonhyo-san Mt. to Kathmandu nonstop flight path and travel direction.

Click to see flight route on Google Map between Wonhyo-san Mt., South Korea and Kathmandu, Nepal. .

Nonstop flight route between Wonhyo-san Mt., South Korea and Kathmandu, Nepal.

Time Difference Between the Airports • - KTM

Time difference between Wonhyo-san Mt. (South Korea) and Kathmandu (Nepal) is 3 Hours 15 Minutes.
Kathmandu time is 3 Hours 15 Minutes behind Wonhyo-san Mt..

Location	Local Time
Wonhyo-san Mt. (South Korea)	2026-06-18, 00:41:54 KST
Kathmandu (Nepal)	2026-06-17, 21:26:54 +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

C 821 Heliport ( / ) Wonhyo-san Mt., South Korea

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal