Rajapaksa International Airport (RIA) - Mattala, Sri Lanka

Rajapaksa International Airport (RIA) (also known as the Hambantota International Airport, Mattala Rajapaksa International Airport) is an international airport serving the city of Hambantota in southeast Sri Lanka. Upon completion, Mattala International Airport will be Sri Lanka's second international airport, after Bandaranayake International Airport (BIA) and the Ratmalana Airport is a domestic airport of Colombo.

https://us.lakpura.com/pages/mattala-rajapaksa-international-airport

Location
Mattala is situated on southern-most sea coast, 240 km away from Colombo.
Access to Colombo city is quicker than ever, using the Southern Express Highway.

History
Historical importance of Mattala can be attributed to the ancient sea trading
port of Sampan-Thota merely ten miles away as well as to the ancient capital of Ruhuna, Mahanagahula (200 BC), just
fifteen miles to South-West.