Distance From Tolsona Lake Seaplane Base to Tribhuvan International Airport

The distance from Tolsona Lake Seaplane Base () to Tribhuvan International Airport (KTM) is 5613 miles or 9033 kilometers or 4874 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 Tolsona Lake ( United States ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Tolsona Lake and Kathmandu takes around 12 hours 54 minutes.

Estimated flight time from Tolsona Lake Seaplane Base, Tolsona Lake, United States to Tribhuvan International Airport, Kathmandu, Nepal is 12 hours 54 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		9033 km
Statute Miles		5613 miles
Nautical Miles		4874 nm
Avg. Time of Flight		12 hours 54 minutes

Tolsona Lake Seaplane Base to Tribhuvan International Airport Flight Route Map - to KTM Flight Path

Location of Tolsona Lake Seaplane Base & Tribhuvan International Airport is given below.
Click the map to view Tolsona Lake to Kathmandu nonstop flight path and travel direction.

Click to see flight route on Google Map between Tolsona Lake, United States and Kathmandu, Nepal. .

Nonstop flight route between Tolsona Lake, United States and Kathmandu, Nepal.

Time Difference Between the Airports • - KTM

Time difference between Tolsona Lake (United States) and Kathmandu (Nepal) is 13 Hours 45 Minutes.
Kathmandu time is 13 Hours 45 Minutes ahead of Tolsona Lake.

Location	Local Time
Tolsona Lake (United States)	2026-09-23, 19:27:26 AKDT
Kathmandu (Nepal)	2026-09-24, 09:12:26 +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

Tolsona Lake Seaplane Base ( / 58A) Tolsona Lake, United States

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal