- There are several airports in Malaysia, but the main international airport is Kuala Lumpur International Airport (KLIA). Located in Sepang, Selangor, KLIA is one of the busiest airports in Southeast Asia. It serves as a major gateway to Malaysia, with numerous airlines operating both domestic and international flights. KLIA has two terminals – KLIA Main Terminal and KLIA2 (which is dedicated to low-cost carriers).