International airports are large facilities that handle flights between different countries. They have customs and immigration services to process passengers arriving from or departing to foreign destinations. These airports typically feature multiple terminals, a variety of shops and restaurants, and services to accommodate international travelers. Airlines such as Delta Air Lines, British Airways, and Emirates operate at international airports, connecting cities around the world. Major international airports, like Hartsfield-Jackson Atlanta International Airport and London Heathrow, serve as key hubs for global air travel, facilitating millions of passengers each year.