What is the difference between a domestic airport and an international airport?

What is the difference between international and domestic airport? Airlines flying out of the country from a particular airport is known as international airport. Airlines flying within a country from an airport that airport is called domestic airport.



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International flights require longer connections as you will often have to go through immigration and customs upon arrival. For international layover flights booked on one airline, two hours is often recommended to make your connection.

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Regional airports support regional economies by connecting communities to statewide and interstate markets. Local airports provide access to intrastate and interstate markets. Basic airports link communities to the national airport system and support general aviation activities.

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International airports are usually larger than domestic airports, and they must 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.

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Atlanta Hartsfield-Jackson International Airport remains the busiest airport in the world with 5.2 million seats in September 2023. The composition of the Global Top 10 Busiest Airports is also the same as last month but there are a few changes to the rankings.

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You'll need a valid photo ID accepted by the TSA (like a driver's license or other government-issued ID) for domestic travel and a valid passport or visa, and any travel documents required by your international destination.

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