Tripdash Team
September 1, 2026
A PNR (passenger name record) is the booking file behind a reservation. What it holds, who creates it, how record locators and splits work, and who sees the data.

A PNR (passenger name record) is the reservation record behind a booking. It holds who is traveling, the itinerary, contact details and ticketing status, filed under a six-character code called the record locator. EU law defines it as the record of each passenger's travel requirements that airlines need to process and control a reservation.
Here is what a PNR holds, who creates it, and who else sees it.
A PNR is the booking file for one trip. The EU PNR Directive defines it as a record of each passenger's travel requirements which contains information necessary to enable reservations to be processed and controlled by the airlines involved (Article 3).
Amadeus describes the same thing from the agent's side: a unique identifier used by travel providers and travel agents to manage personal and booking information for a single trip.
Every PNR has a few required parts, called elements. Amadeus lists five mandatory elements:
Optional elements include special service requests, handling for unaccompanied minors, frequent flyer details and agent remarks. Form of payment is optional to create a PNR but necessary to issue a flight ticket.
The EU directive's list of data airlines may pass to governments runs to 19 categories (Annex I). It includes payment information, general remarks, all historical changes, and a line for the travel agency/travel agent. Your agency's name travels with the booking.
Some PNR fields talk to the airline. Others stay inside your agency. Travelport's Smartpoint quick reference guide splits them this way:
| Field | Who sees it | What it's for |
|---|---|---|
| SSR (special service request) | The airline. SSRs generate messages to airlines | Meals, assistance and other requests the airline must act on |
| OSI (other supplementary information) | The airline | Information only, such as a cross-reference to another ticket |
| Remarks | Your agency. They do not generate messages to airlines | Invoice notes, client preferences, reminders |
| Ticket time limit | You and the airline | The date by which the booking must be ticketed |
Travelport lists passenger phone and email and the ticket time limit among the details you add to every booking file. Airlines can also push their own deadline into the PNR. Finnair, for example, sends non-Amadeus GDS users an SSR ADTK element. If no ticket is issued in time, segments are cancelled and PNR is queued to booking office.
Contact details matter more than they look. Air Mauritius reminded agents in May 2025 that, under IATA Resolution 830d, travel agencies must enter the passenger's phone contact details in the Passenger Name Record (PNR), with the passenger's consent. Without them, the airline can't reach your traveler about a delay.
Both, depending on the channel. Amadeus says all PNRs must be created on a Computer Reservation System (CRS). A direct airline booking is created in the airline's own CRS. An agent booking often goes through a global distribution system (GDS) that allows travel agencies, websites, and other companies to access and make bookings on an airline's CRS.
That is why one agent booking can carry two codes. Travelport says most airlines return a vendor locator, the airline's booking reference in the airline's reservations system. It is not the same as the Travelport+ record locator. The agent works in the GDS record. The airline works in its own.
The record locator is the PNR's short address. Amadeus calls it a 6-character code that also goes by booking code or confirmation code. Travelport assigns its locator the first time you end transaction a booking file. After that, the code does not change regardless of how many times you retrieve, modify, or ignore a record.
| PNR | Record locator | Ticket number | |
|---|---|---|---|
| What it is | The full booking record | The code that finds the record | The identifier for the ticket itself |
| Created when | At booking | When the booking is first saved | When the ticket is issued |
| Who uses it | Agents, airlines, authorities | Agents and travelers | Airline and traveler |
Amadeus is clear on the last column: a PNR is the internal booking record, while a ticket is the document that confirms a traveler's seat.
The record locator stays put. What sits behind it keeps moving. Three things change a PNR most often.
You change it. Adding a segment, a seat or a request updates the same record. Splitting one traveler out creates a new one (see below).
The airline changes it. Schedule changes, cancellations and waitlist moves change a segment's status code. Air Canada queues these changes to your CRS. They must be actioned within 14 days of the schedule change notification, or 48 hours before departure if that comes first. That covers segments with status codes UN, NO, HX, WK, WL, WN or TK.
The clock changes it. Miss the ticketing time limit and the airline may cancel the unticketed segments, as Finnair's rule above shows.
Names are the exception. Air Canada says name changes are not permitted. It allows corrections only when names are misspelled, or to reflect legal documents. Other airlines set their own rules, so check before you promise a fix.
Yes, when one traveler in a shared booking changes plans. Travelport calls this a divide: you can divide passengers from a booking file to then modify or cancel their booking. A few rules apply in its system:
Separate PNRs can also happen by default. Amadeus notes that a connection on two airlines without an agreement may produce a different PNR for each segment.
Governments. In the US, airlines flying to, from or through the country must give CBP electronic access to PNR data under 49 U.S.C. § 44909(c)(3). CBP uses it strictly for the purposes of preventing, detecting, investigating, and prosecuting terrorist offenses and certain transnational crimes. PNR is depersonalized after the first six months, and total retention in CBP's targeting system does not exceed fifteen years.
In the EU, Directive (EU) 2016/681 makes airlines transfer PNR data for extra-EU flights for use against terrorist offences and serious crime. Airlines send it 24 to 48 hours before the scheduled flight departure time and again right after boarding closes. Member states keep it for a period of five years and mask names and contact details after six months.
The EU's top court narrowed that in June 2022. It ruled that the directive precludes national legislation which provides for a general retention period of five years for all passengers alike. Keeping everyone's data for the initial six-month period is fine. After that, retention needs objective evidence of a risk linked to the passenger.
Travelers can ask for their own record. CBP says anyone, regardless of citizenship, can request it under the Freedom of Information Act (FOIA). This is a summary, not legal advice.
Get the name right at booking. Under TSA's Secure Flight rule, airlines request each passenger's full name, sex, date of birth, and Redress Number. TSA defines full name as the name as it appears on a verifying identity document. Airlines must make sure each third party that accepts a reservation on their behalf complies.
What this means for agencies (practical guidance):
Airlines bill agencies for bad bookings with an agency debit memo (ADM), an invoice for a rule breach. Air Canada's CRS booking and ticketing policy is a clear public example. Other airlines publish their own.
Air Canada also adds $10 CAD/USD per passenger per TTL/DUP/PASS segment for time-limit, duplicate and passive-segment breaches, on top of a $50 administration fee per debit memo.
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