Originally Posted by
Duke787
...OP is asking about what amounts to a nested ticket (RDU - JFK with JFK - LHR nested inside).
These can be in violation of an airline's minimum stay requirements. Not always the case but something that can be true and can be problematic if you do it repeatedly and they catch it. ...
The easy workaround is to book the gateway flights as 2x OW tickets like this:
RDU - JFK (ticket
#1 )
JFK - LHR - JFK (ticket
#2 )
JFK - RDU (ticket
#3 )
I don't really see how minimum stay requirements play in this itinerary, but we don't need to go off on that tangent
Originally Posted by
Duke787
... book the nested ticket on a different carrier (e.g., RDU - JFK - RDU is on AA and JFK - LHR - JFK is on DL in which case you are in the clear). ...
the problem with booking on different carriers is the need to change terminals at JFK (or BOS) ... at IAD, everyone's at least all in one building