Distance From Diyawanna Oya Seaplane Base to Tribhuvan International Airport, DWO - KTM Distance

The distance from Diyawanna Oya Seaplane Base (DWO) to Tribhuvan International Airport (KTM) is 1481 miles or 2382 kilometers or 1286 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 Sri Jayawardenepura Kotte ( Sri Lanka ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Sri Jayawardenepura Kotte and Kathmandu takes around 3 hours 24 minutes.

Estimated flight time from Diyawanna Oya Seaplane Base, Sri Jayawardenepura Kotte, Sri Lanka to Tribhuvan International Airport, Kathmandu, Nepal is 3 hours 24 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 • DWO - KTM

Kilometers		2382 km
Statute Miles		1481 miles
Nautical Miles		1286 nm
Avg. Time of Flight		3 hours 24 minutes

Diyawanna Oya Seaplane Base to Tribhuvan International Airport Flight Route Map - DWO to KTM Flight Path

Location of Diyawanna Oya Seaplane Base & Tribhuvan International Airport is given below.
Click the map to view Sri Jayawardenepura Kotte to Kathmandu nonstop flight path and travel direction.

Click to see flight route on Google Map between Sri Jayawardenepura Kotte, Sri Lanka and Kathmandu, Nepal. .

Nonstop flight route between Sri Jayawardenepura Kotte, Sri Lanka and Kathmandu, Nepal.

Time Difference Between the Airports • DWO - KTM

Time difference between Sri Jayawardenepura Kotte (Sri Lanka) and Kathmandu (Nepal) is 0 Hours 15 Minutes.
Kathmandu time is 0 Hours 15 Minutes ahead of Sri Jayawardenepura Kotte.

Location	Local Time
Sri Jayawardenepura Kotte (Sri Lanka)	2025-04-08, 08:47:50 +0530
Kathmandu (Nepal)	2025-04-08, 09:02:50 +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

Diyawanna Oya Seaplane Base (DWO / ) Sri Jayawardenepura Kotte, Sri Lanka

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal