The procedure for an international flight is a multi-step process that involves more documentation and security layers than domestic travel. First, you must ensure your passport is valid (usually for at least six months beyond your travel date) and that you have obtained any necessary visas. Upon arriving at the airport, you proceed to the check-in desk where an agent will verify your travel documents and weigh your checked luggage. After receiving your boarding pass, you move to the security screening, which follows the same liquid and electronics rules as domestic flights but may include more rigorous body scanners. The most distinct part of the international process is Customs and Border Protection. Depending on the country, you may go through passport control (Emigration) before departing. Once you land at your destination, the flow is reversed: you follow signs for "Immigration/All Passports," where an officer will review your entry credentials. After clearing immigration, you collect your bags from the carousel and pass through the Customs hall, where you must declare items like commercial goods, large amounts of cash, or restricted agricultural products. Only after passing the "Nothing to Declare" or "Items to Declare" exit are you officially in the new country.