One of the best ways to collect miles with your favorite loyalty program is to credit yourself with as many paid flights as possible. For example, if you have decided to collect japan Airlines miles in some way, you can collect miles on eligible codeshare flights. Perhaps it is easier to explain it in the form of an example. Air Canada is part of Star Alliance and Cathay Pacific is part of oneworld. However, they have made the joint decision to share codes at both ends of their flights between Canada and Hong Kong: this is a very fundamental level of cooperation, so there are airlines that have interline agreements that otherwise do not cooperate. ExpertFlyer shows as an example the airlines with which American has an interline agreement: this can also happen for first and business class, although it is less common, as airlines would be very brave to sell a first class route where much of the route is in business class. Unless they have made it very clear to the passengers at the time of booking. Airlines want to work with other airlines that complement them best, and this can happen in many different forms. To name just a few examples of partnerships that have emerged in recent years outside of traditional alliances, there are also codeshare agreements between airlines and railway companies, formerly called air-rail alliances and often marketed as “Rail & Fly” due to the popularity of Deutsche Bahn`s codeshare with many airlines.
 They include some integration of the two modes of transport, for example. B in the search for the fastest connection and the possibility of transfer between the plane and the train with a single ticket. This allows passengers to book an entire trip at the same time, often at a discounted price compared to separate tickets. Customers can buy a ticket from 1 airline, but travel with a number of other airlines as long as the airlines have a business relationship called a codeshare agreement. As a result, customers have greater autonomy in choosing their flight plan, whichever suits them best. American Airlines operates AA125, but Cathay Pacific also participates in this codeshare with flight number “CX7681”. Cathay Pacific`s American routes use all flight numbers in the 800s (the number 8 is considered promising in Chinese culture), which is very different from the 4-digit codeshare format. It makes sense to purchase a codeshare ticket at an additional cost of 100 $US compared to separately booked tickets, for example if the value of the flight exceeds 2,000 $US.
In this way, the airline is legally obliged to redirect passengers if you miss a connection. If you book through these methods, you have the right to collect miles from Japan Airlines. Remember that many codeshare flights are much more expensive than a normal flight. In the example below, booking as EK 319 may cost several hundred dollars less than booking as JL 5095. You should keep this in mind when looking for codeshare flights. But don`t worry. In this guide, we talk about code shares and line-spacing agreements….