An airport is a designated location where aircraft take off and land. Airports are one of the most important parts of the air transport system today. They provide the entire infrastructure needed for passengers to transfer from surface modes of transport to the air mode of transport and carry freight .In terms of commercial aviation, airports may be classified into two categories-domestic and international-though many international airports often host both domestic and international flights.
Domestic airports are the most basic airports because they are only able to handle flights within the same country. They do not have customs, immigration or quarantine capabilities and are therefore unable to handle international arrivals and departure flights.
As its name implies, international airports are designed to handle international arrival and departure flights. Generally, international airports also handle domestic flights. They are also equipped with infrastructure designed to accommodate larger aircraft which are used for long-haul flights.