Cairo International Airport is the principal international airport of Cairo and the largest and busiest airport in Egypt. It 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 fifteen kilometres from the business area of the city and has an area of approximately 37 km2 (14 sq mi). It is the busiest airport in Africa, in terms of total passengers.

An international airport is an airport with customs and border control facilities enabling passengers to travel between countries around the world. International airports are usually larger than domestic airports, and feature longer runways and have facilities to accommodate heavier aircraft such as the Boeing 747 and the Airbus A380 commonly used for international and intercontinental travel. International airports often host domestic flights, which helps feed both passengers and cargo into international ones.