If, for the first time, you are insuring travellers on a complex booking with several airlines that are not part of the same alliance, you may be wondering what to do with your luggage. Do you have to collect it with each connection and check it again? No no. Well, sometimes, but fortunately, many airlines give you the opportunity to interline your luggage to check the monstrosity, collect it and check it again. American Airlines authorized the line on all major airlines, but they changed that in October 2014. Now they only allow interlining baggage to oneworld, US Airways, AA, US Express and American Eagle partners. A few years ago, American Interline stopped transfers when a customer used two different tickets (2 different passenger datasets or PNRs). And that`s the point that consumers need to understand. If you purchase two separate tickets to go from Point A (your starting point) to point C (your ultimate destination) because you want to finish the airline to change to point B (your connecting airport), you will not be transferred your luggage to your ultimate destination at Point B (connection airport) American (Oneworld), United (Star Alliance) and Delta (SkyTeam). No discount airline will do so either. United is by far the most generous U.S.

airline in terms of interline. They have agreements with most Star Alliance airlines, Oneworld carriers and Skyteam airlines, as well as major non-alliances. The only restriction is that you have to pay United fees for luggage, regardless of the class of your second ticket. The downside of an Interline deal is that passengers cannot collect miles for the entire trip. On Emirates flight, for example, Skywards miles would only be collected on the Dubai-Mexico portion of the flight, not on the continuation of the journey. Note that US Airways, Hawaiian and low-cost airlines like Southwest do NOT check baggage when travelling with separate tickets. You must pay all the fees due for checked baggage and collect your luggage before checking it again with your passenger. Don`t confuse the Interline ticketing agreement with codeshare or operator companies: Of course, one way to avoid restrictive baggage policies and baggage check-in problems, if they are on separate tickets, is simply not to check luggage, which we have been doing in my family since my son was no longer young and we had little to bring. See How to Avoid hold baggage and 6 reasons to never check luggage If, if your second separate ticket is an OW carrier or a codeshare carrier, then it seems that MH allows it…