Distance From RAF Ascension Island to Mattala Rajapaksa International Airport, ASI - HRI Distance

The distance from RAF Ascension Island (ASI) to Mattala Rajapaksa International Airport (HRI) is 6654 miles or 10709 kilometers or 5779 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 Cat Hill ( Saint Helena, Ascension and Tristan da Cunha ) to Mattala ( Sri Lanka )?

A one-way nonstop (direct) flight between Cat Hill and Mattala takes around 15 hours 17 minutes.

Estimated flight time from RAF Ascension Island, Cat Hill, Saint Helena, Ascension and Tristan da Cunha to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is 15 hours 17 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 • ASI - HRI

Kilometers		10709 km
Statute Miles		6654 miles
Nautical Miles		5779 nm
Avg. Time of Flight		15 hours 17 minutes

RAF Ascension Island to Mattala Rajapaksa International Airport Flight Route Map - ASI to HRI Flight Path

Location of RAF Ascension Island & Mattala Rajapaksa International Airport is given below.
Click the map to view Cat Hill to Mattala nonstop flight path and travel direction.

Click to see flight route on Google Map between Cat Hill, Saint Helena, Ascension and Tristan da Cunha and Mattala, Sri Lanka. .

Nonstop flight route between Cat Hill, Saint Helena, Ascension and Tristan da Cunha and Mattala, Sri Lanka.

Time Difference Between the Airports • ASI - HRI

Time difference between Cat Hill (Saint Helena, Ascension and Tristan da Cunha) and Mattala (Sri Lanka) is 5 Hours 30 Minutes.
Mattala time is 5 Hours 30 Minutes ahead of Cat Hill.

Location	Local Time
Cat Hill (Saint Helena, Ascension and Tristan da Cunha)	2026-04-29, 19:25:44 GMT
Mattala (Sri Lanka)	2026-04-30, 00:55:44 +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

RAF Ascension Island (ASI / FHAW) Cat Hill, Saint Helena, Ascension and Tristan da Cunha

Destination

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