Originally Posted by
vasantn
A nested itinerary is perfectly legal if you are not returning to your originating city. If you are, it becomes a back-to-back itinerary and potentially illegal. At least, that's always been my understanding.
Again, the issue is whether you are trying to circumvent the fare rule. Try booking the alternate set of tickets without nesting and see if the fares are the same . This should give you peace of mind.