That seems in contradiction with the ZED concept of the 9 milage zones. I've been using ZED tickets for one destination many times on different destinations, within the same zone.
For instance: I regularly swap from JFK to EWR and vv. when heading to New York from BRU. I've never bothered about the fact the taxes on both airports may not be identical, and in fact the carriers never seem to do so either.
Bookmarks