What is an itinerary?

How does an itinerary differ from a ticket, a PNR and a boarding pass?

The four words describe four different layers of the same trip. The itinerary is the plan: where the passenger goes, on which flights, in which order. The ticket is the document that records what was paid and what the passenger is entitled to fly. A passenger name record, usually shortened to PNR, is the booking held in the airline's reservation system under a record locator, and the itinerary is the travel plan stored inside it. The boarding pass is the document issued at check-in that gets the passenger through security and onto a specific flight.

American Airlines' Conditions of Carriage, updated 13 August 2026, group some of these layers together. Their glossary defines "Ticket" as the passenger ticket, bag check and boarding pass which incorporate the conditions of carriage, including tickets issued electronically, so in American's wording the boarding pass sits inside the ticket rather than inside the itinerary. [2] The same conditions say every passenger must have a valid ticket to fly and that a ticket cannot be transferred to, or refunded to, another passenger. [2]

Because the itinerary is a plan and not a payment, the two can be changed separately. American's conditions describe automated re-shopping as the use of a robotic or automated process to re-book a ticket for the same passenger and itinerary in order to capture a reduced fare where no change fee is payable to American. [2]

What counts as a flight segment or a stopover?

American defines a flight segment as "a nonstop point-to-point flight that consists of one takeoff and one touchdown." [2] It defines a stopover as a planned stop in a city or airport for over four hours. [2] Those two definitions set the grain of an itinerary: a journey that involves changing planes is made up of more than one segment, and a planned pause longer than four hours in the middle of a journey is treated as a stopover rather than a simple connection.

Segments and itineraries also carry obligations for the passenger. American requires travellers to have the right travel documents and to be allowed to travel to, from or through any of the countries in their itinerary. [2] Checked bags must travel to the same ticketed final destination as the passenger, meaning the itinerary and the bag tag have to agree. [2] Where any part of the trip is a codeshare flight operated by a partner airline, American tells passengers to check with that operating airline. [2]

When does an itinerary change qualify for a refund on American Airlines?

American says it promptly and automatically refunds customers the ticketed fare, including taxes and fees, if there is a cancellation or significant flight itinerary change and the customer chooses either not to fly on the changed flight, to accept rebooking on an alternative flight, or to accept other compensation. [2] The conditions list which itinerary changes count as eligible: changes of 3 or more hours on domestic itineraries or 4 or more hours on international itineraries, changes in the origin or destination airports, downgrades to a lower cabin, and an increased number of connections. [2]

The same 3-hour and 4-hour thresholds appear in American's rule on disruption. If American or its airline partner cancels the flight, or departure or arrival is delayed by 3 or more hours domestically or 4 or more hours internationally, American says its sole obligation is to refund the unused ticket value and any optional fees under its involuntary refunds policy, subject to its rebooking policy. [2] Passengers who choose to fly in a lower cabin after a downgrade are refunded the difference between the original fare and the fare for the cabin flown on the affected segment. [2]

What must an itinerary match for a ticket to be valid?

American says a ticket is valid only when travel is to or from the cities on the ticket and in the trip record, and when the passenger meets all the fare requirements. [2] Those fare requirements can include dates of stay, military status, official government business, or attendance at an event. [2] A ticket stops being valid if the passenger does not meet the dates of stay, purpose or status requirements of the fare, or if the ticket was bought using an exploitative practice. [2]

Some of those practices involve deliberately mismatching the itinerary and the ticket. American's examples of prohibited booking practices include buying a ticket without intending to fly all flights in order to gain a lower fare, which it calls hidden city ticketing, and booking duplicate or impossible trips, such as multiple trips for the same passenger around the same time that the passenger physically could not complete. [2] Where American finds such a practice, it reserves the right to cancel any unused part of the ticket, refuse to carry the passenger and bags, and decline to refund an otherwise refundable ticket. [2]

Exceptions and limits

• Whose rules these are. The definitions and thresholds above come from American Airlines' Conditions of Carriage, updated 13 August 2026, which govern transportation and baggage provided by American Airlines. [2] They are not a statement of every carrier's rules, and on a codeshare flight operated by a partner airline American directs passengers to that airline. [2]
• Bag fees can repeat mid-itinerary. American says passengers may have to pay bag fees again if they connect on another airline, or if the connection on American is more than 16.5 hours later. [2]
• Itinerary type sets reporting deadlines. For a delayed mobility or medical device, American requires a report within 24 hours of arrival for domestic itineraries and 21 days of arrival for international itineraries; for a damaged device the windows are 24 hours for domestic itineraries and 7 days for international itineraries. [2]
• Time limits on ticket use. In general an unused ticket must have travel started within one year of the date it was first issued, and a partially used ticket must have travel completed within one year of the first completed flight, unless the ticket states otherwise. [2]

Frequently asked questions

Is an itinerary the same as a ticket?

No. The itinerary is the travel plan; the ticket is the document that incorporates the conditions of carriage and, at American Airlines, includes the bag check and boarding pass, whether issued electronically or otherwise. [2]

What is a stopover on an itinerary?

American defines a stopover as a planned stop in a city or airport for over four hours, which separates it from a routine connection. [2]

Does a big schedule change mean I can get my money back?

Under American's conditions, changes to an itinerary of 3 or more hours domestically or 4 or more hours internationally are eligible flight itinerary changes, and American says it promptly and automatically refunds the ticketed fare including taxes and fees when the customer chooses not to fly, accepts rebooking, or accepts other compensation. [2]

Can I skip the last flight on my itinerary?

American lists buying a ticket without intending to fly all flights in order to gain a lower fare, known as hidden city ticketing, among prohibited booking practices, and reserves the right to cancel the unused part of such a ticket. [2]

Related pages

Start from the Frequent Flyer Encyclopedia glossary for the rest of the booking vocabulary, then read the entries that sit closest to this one: ticket, flight segment, stopover and boarding pass, all indexed in the same terms list.

Sources

Sources accessed on 18 October 2026. The rules described are American Airlines' own; the conditions of carriage of other airlines and the booking rules of frequent flyer programmes are not covered here — see the glossary for related terms.

1. American Airlines Conditions of Carriage, checked 18 October 2026