Distance From Okisai Airstrip to Mattala Rajapaksa International Airport

The distance from Okisai Airstrip () to Mattala Rajapaksa International Airport (HRI) is 4261 miles or 6857 kilometers or 3700 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 Okisai ( Papua New Guinea ) to Mattala ( Sri Lanka )?

A one-way nonstop (direct) flight between Okisai and Mattala takes around 9 hours 47 minutes.

Estimated flight time from Okisai Airstrip, Okisai, Papua New Guinea to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is 9 hours 47 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		6857 km
Statute Miles		4261 miles
Nautical Miles		3700 nm
Avg. Time of Flight		9 hours 47 minutes

Okisai Airstrip to Mattala Rajapaksa International Airport Flight Route Map - to HRI Flight Path

Location of Okisai Airstrip & Mattala Rajapaksa International Airport is given below.
Click the map to view Okisai to Mattala nonstop flight path and travel direction.

Click to see flight route on Google Map between Okisai, Papua New Guinea and Mattala, Sri Lanka. .

Nonstop flight route between Okisai, Papua New Guinea and Mattala, Sri Lanka.

Time Difference Between the Airports • - HRI

Time difference between Okisai (Papua New Guinea) and Mattala (Sri Lanka) is 4 Hours 30 Minutes.
Mattala time is 4 Hours 30 Minutes behind Okisai.

Location	Local Time
Okisai (Papua New Guinea)	2026-03-20, 02:53:08 +10
Mattala (Sri Lanka)	2026-03-19, 22:23:08 +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

Okisai Airstrip ( / AYOH) Okisai, Papua New Guinea

Destination

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