what is pnr number

A PNR number, or Passenger Name Record, is a unique reservation number or booking number issued by the carrier for one or more flights. It is an electronic detail consisting of numbers and letters given after booking a flight. The PNR number is generated each time a flight is booked and refers to certain data that airlines collect from passengers when booking flights in order to operate the flight. The PNR number can be seen on the e-ticket mostly in the corresponding segment of the itinerary. It is important to know that there can be a different PNR number for each part of the trip, which is common for separate bookings or for stopovers with their own transfer. In most cases, the PNR number is also the booking number.