Distance From Lloyd R. Roundtree Seaplane Facility Seaplane Base to Mattala Rajapaksa International Airport

The distance from Lloyd R. Roundtree Seaplane Facility Seaplane Base () to Mattala Rajapaksa International Airport (HRI) is 7672 miles or 12347 kilometers or 6663 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 Petersburg ( United States ) to Mattala ( Sri Lanka )?

A one-way nonstop (direct) flight between Petersburg and Mattala takes around 17 hours 38 minutes.

Estimated flight time from Lloyd R. Roundtree Seaplane Facility Seaplane Base, Petersburg, United States to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is 17 hours 38 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		12347 km
Statute Miles		7672 miles
Nautical Miles		6663 nm
Avg. Time of Flight		17 hours 38 minutes

Lloyd R. Roundtree Seaplane Facility Seaplane Base to Mattala Rajapaksa International Airport Flight Route Map - to HRI Flight Path

Location of Lloyd R. Roundtree Seaplane Facility Seaplane Base & Mattala Rajapaksa International Airport is given below.
Click the map to view Petersburg to Mattala nonstop flight path and travel direction.

Click to see flight route on Google Map between Petersburg, United States and Mattala, Sri Lanka. .

Nonstop flight route between Petersburg, United States and Mattala, Sri Lanka.

Time Difference Between the Airports • - HRI

Time difference between Petersburg (United States) and Mattala (Sri Lanka) is 13 Hours 30 Minutes.
Mattala time is 13 Hours 30 Minutes ahead of Petersburg.

Location	Local Time
Petersburg (United States)	2026-09-23, 16:28:01 AKDT
Mattala (Sri Lanka)	2026-09-24, 05:58:01 +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

Lloyd R. Roundtree Seaplane Facility Seaplane Base ( / 63A) Petersburg, United States

Destination

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