PNR (record locator)

The Passenger Name Record — the reservation itself, addressed by the six-character code airlines call a record locator. One itinerary can carry several PNRs (one per airline system involved) plus a ticket number, which is a separate thing entirely. Practical guidance: the record locator lets you view and manage the booking on the airline’s site; the 13-digit e-ticket number is your proof of purchase. A professional confirmation hands you both, labelled.