Perth Airport (IATA: PER, ICAO: YPPH) is an Australian domestic and international airport located in Redcliffe, Western Australia, and is the major commercial airport servicing Western Australia's capital city, Perth. It is the fourth busiest airport in Australia and plays a strategic role due to its location – servicing many Australian, Asian, and Indian Ocean destinations as well as Johannesburg, South Africa and Dubai, United Arab Emirates. The airport has seen strong passenger growth in the last few years, primarily due to the prolonged mining boom and the increase in services from international budget carriers. In the first half of the financial year 2007/2008 passenger numbers increased by 13.34% The two domestic terminals are side by side and about 12 kilometres (7.5 mi) from the Perth CBD, whilst the international terminal is 17 kilometres (10.6 mi) from the CBD. The international terminal is on the opposite side of the main runway from the domestic terminals. The road distance between the international terminal and the domestic terminals is 11 kilometres.