Distance From Mattala Rajapaksa International Airport to Seattle–Tacoma International Airport, HRI - SEA Distance

The distance from Mattala Rajapaksa International Airport (HRI) to Seattle–Tacoma International Airport (SEA) is 8458 miles or 13612 kilometers or 7345 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 Mattala ( Sri Lanka ) to Seattle ( United States )?

A one-way nonstop (direct) flight between Mattala and Seattle takes around 19 hours 26 minutes.

Estimated flight time from Mattala Rajapaksa International Airport, Mattala, Sri Lanka to Seattle–Tacoma International Airport, Seattle, United States is 19 hours 26 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 - SEA

Kilometers		13612 km
Statute Miles		8458 miles
Nautical Miles		7345 nm
Avg. Time of Flight		19 hours 26 minutes

Mattala Rajapaksa International Airport to Seattle–Tacoma International Airport Flight Route Map - HRI to SEA Flight Path

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

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

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

Time Difference Between the Airports • HRI - SEA

Time difference between Mattala (Sri Lanka) and Seattle (United States) is 12 Hours 30 Minutes.
Seattle time is 12 Hours 30 Minutes behind Mattala.

Location	Local Time
Mattala (Sri Lanka)	2025-12-15, 20:37:35 +0530
Seattle (United States)	2025-12-15, 08:07:35 MST

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

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

Destination

Seattle–Tacoma International Airport (SEA / KSEA) Seattle, United States