An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...
that can accommodate flights from other countries and are typically equipped with customs
Customs is an authority or agency in a country responsible for collecting and safeguarding customs duties and for controlling the flow of goods including animals, transports, personal effects and hazardous items in and out of a country...
Immigration is the act of foreigners passing or coming into a country for the purpose of permanent residence...
facilities to handle these flights to and from other countries. Such airports are usually larger, and often feature longer runway
According to ICAO a runway is a "defined rectangular area on a land aerodrome prepared for the landing and take-off of aircraft." Runways may be a man-made surface or a natural surface .- Orientation and dimensions :Runways are named by a number between 01 and 36, which is generally one tenth...
s and facilities to accommodate the large aircraft commonly used for international or intercontinental travel. International airports often host domestic flights (flights which occur within the country) in addition to international flights.