I would not be inclined to trust what Chase UR (Expedia I believe ) says, it is what AA say that counts. It may be that the only way to find out is to book it and then check with AA and use the 24 hour cancellation if you don't like the answer. It is a hassle as you have to cancel through Expedia and they may have a fee. Of course, if the fare is the same and the itinerary suits then you are no worse off than on the other flights.