Melbourne Airport (IATA: MEL, ICAO: YMML) (formerly known as Tullamarine Airport) is an international airport serving Melbourne, Victoria, the second largest city in Australia. It is located approximately 22 kilometres (14 mi) northwest of the Melbourne city centre. The airport served over 36 million passengers in 2025, making it the second busiest airport in Australia by passenger movements after Sydney Airport. The airport opened in 1970, replacing Essendon Airport for all international flights. It is also the main international airport serving the whole state of Victoria. The airport was specifically built to operate without a curfew and is Australia's busiest 24-hour airport. The airport has a consolidated four-terminal layout with one international terminal, one budget domestic terminal, and two standard domestic terminals, currently covering 1,070 hectares (2,600 acres) of airport property.