Why do U.S. international airports lack ‘sterile’ international connections areas that don’t require you to clear U.S. customs in order to connect on an international flight, like airports in many other countries have?

Question

Why do U.S. international airports lack ‘sterile’ international connections areas that don’t require you to clear U.S. customs in order to connect on an international flight, like airports in many other countries have?

In: Other

Answer 1

Most other countries have a really small domestic air travel market. In the US it’s the primary long distance travel, so our airports are built for it.