Distance From Onchon Underground Fighter Base to Mattala Rajapaksa International Airport

The distance from Onchon Underground Fighter Base () to Mattala Rajapaksa International Airport (HRI) is 3552 miles or 5716 kilometers or 3085 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 Onchon ( North Korea ) to Mattala ( Sri Lanka )?

A one-way nonstop (direct) flight between Onchon and Mattala takes around 8 hours 9 minutes.

Estimated flight time from Onchon Underground Fighter Base, Onchon, North Korea to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is 8 hours 9 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 • - HRI

Kilometers		5716 km
Statute Miles		3552 miles
Nautical Miles		3085 nm
Avg. Time of Flight		8 hours 9 minutes

Onchon Underground Fighter Base to Mattala Rajapaksa International Airport Flight Route Map - to HRI Flight Path

Location of Onchon Underground Fighter Base & Mattala Rajapaksa International Airport is given below.
Click the map to view Onchon to Mattala nonstop flight path and travel direction.

Click to see flight route on Google Map between Onchon, North Korea and Mattala, Sri Lanka. .

Nonstop flight route between Onchon, North Korea and Mattala, Sri Lanka.

Time Difference Between the Airports • - HRI

Time difference between Onchon (North Korea) and Mattala (Sri Lanka) is 3 Hours 30 Minutes.
Mattala time is 3 Hours 30 Minutes behind Onchon.

Location	Local Time
Onchon (North Korea)	2025-12-15, 05:25:50 KST
Mattala (Sri Lanka)	2025-12-15, 01:55:50 +0530

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

Onchon Underground Fighter Base ( / ) Onchon, North Korea

Destination

Mattala Rajapaksa International Airport (HRI / VCRI) Mattala, Sri Lanka