A flight confirmation code, often called a Record Locator or PNR (Passenger Name Record), is a unique 6-character alphanumeric string used by airlines to identify your reservation. An example of a standard confirmation code would be something like D4GDLZ or B7Y3XA. These codes typically consist of a mix of uppercase letters and numbers, though some airlines use letters only (e.g., LQKRTN). It is important to distinguish this from your 13-digit ticket number (e.g., 016-1234567890), which is the actual financial record of your seat. You use the 6-character code to check in online, manage your seat selection, or add baggage through the airline's website. If you booked through a third-party site like Expedia or a travel agent, you might receive a separate agency code, but you must find the specific "Airline Confirmation" code to access the carrier's direct services.