A flight confirmation code, also known as a Record Locator or PNR (Passenger Name Record), is a unique 6-character alphanumeric string (e.g., L8X2P9) assigned to your specific reservation. This code is the "key" to your entire travel itinerary; it allows you to log into the airline's website or app to select seats, add baggage, or check in for your flight. While a "ticket number" is a long 13-digit sequence used for financial processing, the confirmation code is what you will use for almost all daily interactions with the airline. In 2026, it is vital to keep this code secure, as anyone with your code and last name can potentially access your personal contact information or change your flight details. You can typically find this code at the top of your confirmation email or on your digital boarding pass once you have completed the check-in process.