CAI, Cairo International Airport is the principal international airport of Cairo and the busiest airport in Egypt and serves as the primary hub for EgyptAir and Nile Air as well as several other airlines. The airport is located in Heliopolis, to the northeast of Cairo around 9.3 mi from the business area of the city and has an area of approximately 14 sq miles. It is the second busiest airport in Africa after OR Tambo International Airport in Johannesburg.
The airport has four terminals, the third (and largest) opened on 27 April 2009 and the Seasonal Flights Terminal opened on 20 September 2011. Terminal 2 was closed in April 2010 for major renovation works and was reopened on 28 September 2016. A third parallel runway replaced the crossing runway in 2010.