Changi Airport is the main international airport of Singapore, and functions as one of the most significant aviation gateways in the Asia-Pacific region. Situated within the Changi planning area in the eastern part of the country, the airport is approximately 24 kilometres east from the Central Area and occupies a site spanning about 25 square kilometres. The airport is a base for more than 100 international carriers with scheduled services linking Singapore to destinations across Asia, Oceania, Africa, Europe, the Middle East and North America. As of 2025, Changi Airport handled about 70 million passengers and ranked the 16th busiest airport by passenger traffic as well as the 4th busiest international airport by seat volume based on OAG's records.