PNR stands for “Passenger Name Record.” It is a unique alphanumeric code assigned to a passenger’s itinerary or reservation in the airline industry. The PNR contains essential information about the traveler’s flight details, including the passenger’s name, flight numbers, departure and arrival cities, dates and times of travel, seat assignments, and any other relevant booking information. Airlines and travel agencies use PNRs to manage reservations, track passenger itineraries, and facilitate check-in and boarding processes.