How about you find the cheapest itin that you plan on using as you purchased. I mean UA plans to fulfill their end of the agreement, why don't you? The train suggestion works. Honesty and honor should be wroth something to you, or if you are not concerned with what is ethical, then the open jaw seems to be popular, but I don't advocate dishonesty....that is, unless you feel that you should also be defrauded whenever possible, at which point, what goes around comes around in the world of karma.