Chennai International Airport is an international airport serving the city of Chennai, the capital of Tamil Nadu, India and its metropolitan area. It is located in Tirusulam, around 20 km (12 mi) southwest of the city centre. The airport is the fifth-busiest airport in India, and third by international traffic. It was also the 49th-busiest airport in Asia in 2018, making it one of the four major airports in India under the top 50 list of 2018. In financial year 2023-24, the airport handled over 21 million passengers.

Tirusulam is a census town in Chengalpattu district falling within the Chennai metropolitan area,adjoining the Chennai International Airport, with the cargo terminal located at the adjacent Meenambakkam.