Your flight number is a unique alphanumeric code assigned to your specific flight, and you can find it in several places. It always begins with a two-letter airline code (e.g., AA for American, DL for Delta, BA for British Airways) followed by a one-to-four-digit number (e.g., BA123). It is prominently displayed on your booking confirmation email, your boarding pass (both paper and digital), and on the "Flight Status" section of the airline's mobile app. When you arrive at the airport, the flight number is the most reliable way to find your gate on the "Arrivals/Departures" monitors, as multiple flights may go to the same city at similar times. Be careful not to confuse it with your "Confirmation Number" or "Record Locator" (usually a 6-character code like K8XJ9P), which is used for check-in. In 2026, many travelers also use "Live Activities" on their smartphones, which pull the flight number directly from their digital wallet to provide real-time gate and delay updates.