International airports are major transportation hubs that facilitate air travel between countries. They are equipped to handle international flights, which means they have customs and immigration facilities to process passengers arriving from or departing to foreign destinations. These airports typically offer a wide range of services, including duty-free shopping, restaurants, and lounges. Airports like Heathrow Airport in the United Kingdom and Los Angeles International Airport in the United States are examples of international airports. They connect millions of travelers each year and play a crucial role in global trade and tourism, making it easier for people to explore different parts of the world.