Suvarnabhumi Airport is the main international airport serving Bangkok, the capital of Thailand. Located mostly in Racha Thewa subdistrict, Bang Phli district, Samut Prakan province, it covers an area of 3,240 ha, making it one of the biggest international airports in Southeast Asia and a regional hub for aviation. The airport is also a major Cargo Air Freight Hub, which has a designated Airport Free Zone, as well as road links to the Eastern Economic Corridor (EEC) on Motorway 7.

An international airport is an airport with customs and border control facilities enabling passengers to travel between countries around the world. International airports are usually larger than domestic airports, and feature longer runways and have facilities to accommodate heavier aircraft such as the Boeing 747 and the Airbus A380 commonly used for international and intercontinental travel. International airports often host domestic flights, which helps feed both passengers and cargo into international ones.