When two airlines have entered into an interline arrangement, they usually take care of check-in and baggage for each other`s passengers. This means that travelers only need to check in once for all flights on the itinerary and their luggage is transferred from the first airline to the second airline without having to pick it up and drop it off manually. As a rule, even U.S. airlines that do not associate have an interline agreement. A few years ago, Delta decided to pull out of an interline agreement with American, I suspect because they found that American had booked more passengers during irregular operations than the other way around. If you make a reservation with Copa Airlines in conjunction with another Star Alliance airline, your baggage will be checked in after check-in to your final destination, unless the provisions of copa airlines` interline baggage policy apply. Luggage for interline flights usually means that airlines process your luggage and make sure it is transported to your final destination. This means that you check in your luggage at the departure airport and the airline processes it to your destination, where you can pick it up. Some airlines do not participate in interline agreements, such as .B. WOW Air, which require passengers to treat connecting flights with other airlines as if it were the first flight on your journey, and the passenger must collect their luggage and check in with the next airline.

Small traditional carriers typically have interline agreements with large network carriers that serve their markets. Most new low-cost airlines that only sell directly to consumers (and not through global agencies or distribution systems) do not support interline at all. If you are faced with irregular operations such as a delay or cancellation of a major flight, you can usually be booked with any other airline that has an interline agreement with your operating airline. With all these partnerships, the exact details vary depending on the agreement reached. Hopefully, this provides a useful insight into demystifying some of the partnership terminologies commonly used by airlines around the world. Codeshare agreements focus on aircraft planning and sharing. A codeshare customer can buy a ticket from one airline, but travel with another airline if both have consented to the relationship. Customers who wish to travel with airlines with codeshare agreements have a wider choice of flights, as the ticket can be used interchangeably with both airlines depending on fare rules and stock availability. Since tickets are interchangeable, airlines with codeshare agreements also have an interline agreement. Codeshare agreements also typically provide for the accumulation of frequent flyer bonus program miles for the customer`s choice program. A codeshare is considered the next step after line spacing and involves airlines working together by placing their «codes» on each other`s flights.

What is this code? Well, it depends on the airline. IATA issues the codes to all its member airlines, and this is what is displayed on the flight number of each service. If you take a look at the «Travel Information» section of ExpertFlyer, you will find a tab for «Interline Agreements». When you enter AA for American Airlines, the list is displayed as a two-letter code for all airlines used by American Interlines. At Simple Flying, we often write about new agreements between airlines. From codeshares to joint ventures to interline agreements. There is a lot of cooperation between carriers. But what exactly are interline agreements and how do they differ from other types of partnerships? An interline flight is an agreement between airlines to coordinate passengers with an itinerary that uses multiple airlines without having to check in again or handle their luggage at the stopover. Codeshare agreements are when airlines operate flights on behalf of another airline using their flight code. For example, a ticket that you purchased from Finnair but is operated by British Airways on a British Airways aircraft.

The downside of an interline agreement is that passengers cannot earn frequent flyer miles for the entire trip. On the Emirates flight, for example, Skywards Miles would only be earned on the Dubai-Mexico city portion of the flight, not on the rest of the trip. You know if your flight will be part of a codeshare because it will appear as «Operated by» in Alternative Airlines` search results. An example of a codeshare agreement is shown below, a FinnAir flight operated by British Airways and an American Airlines flight operated by British Airways. .