The PNR acronym is the abbreviation of Passenger Name Record- a unique six-symbol alphanumeric identifier given to each booking in an airline’s reservation system. It helps to easily access your flight and passenger data.
If various carriers are included in your route, please know that each has its personal PNR code given to your booking. This is useful to be acquainted with when reaching your airlines, as you will need to provide exactly the PNR code that belongs to this specific provider in order to check your info.
You may see your PNR codes on your e-ticket, as shown below: