PNR / booking reference: Meaning for Flight Refunds and

A booking reference used to locate a reservation. Protect it like personal travel information and enter it only on an official channel.

Why it matters

Treat this reference as private. It can let someone view or change a reservation on some airline sites.

Compare the applicable rule with your ticket and the airline’s written notice. You can also browse other flight-claim terms.

This definition is a starting point. The rule and ticket terms for your flight still matter.