The easiest way to know if 2 airlines have an interline agreement is to use ExpertFlyer. Airlines have codeshare agreements because they want to fly their customers to more destinations without having to buy more planes, hire more flight attendants and pay more airport fees. That is why airlines are participating in partnerships to facilitate this agreement. But don`t be afraid. In this manual, we talk about code sharing and interline agreements. First, let`s describe what they are exactly. Then you`ll find out how to determine if you`re on a code sharing or not. Finally, we`ll show you why you should take care of code sharing. Hot Tip: One of the best ways to detect with reasonable accuracy that you are on a codeshare flight is if the flight number format does not match similar flights on the same airline. As a general rule, low-cost airlines do not participate in Interline agreements, so be aware of this. An interline flight is an agreement between airlines to coordinate passengers with an itinerary that uses multiple airlines without having to relocate or drop off their luggage during the stopover. Codeshare agreements are airline flights on behalf of another airline using their flight code.

For example, a ticket you bought from Finnair but British Airways operates with a British Airways aircraft. Conclusion: Codeshare flight miles are always possible. However, you can only collect miles on certain codeshare flights that have the same code as the airline for which you want to earn miles. Conclusion: Codeshare flights allow travelers with the marketing company`s elite status to enjoy airline flight benefits. These include excellent benefits such as preferred baggage handling, priority boarding, lounge access, extra baggage and even expedited security. where? Lies. It is a fundamental part of all the alliances they have interline agreements between them. How else could they distribute elite miles and miles on airlines? It`s the same story for those with elite status. If you have United 1K Elite status and book a codeshare ticket on ANA marketed by United Airlines, your flight will continue to be insured by ANA.