A flight confirmation is a document or notification that verifies a passenger's booking for a specific flight. It typically includes essential details such as the flight number, departure and arrival times, and airline name. Passengers receive this confirmation via email or text message after completing their booking. Having a flight confirmation is important for travelers, as it serves as proof of their reservation. It also helps ensure that all details are correct, allowing passengers to check for any changes or updates related to their itinerary before their travel date.