Originally Posted by
browserden
you could do a cheap CE upgrade ORY-LHR to get lounge access in Orly.
As I understand it that would only work on the ORY - LHR leg (I can't tell if that's inbound or outbound - i.e., the trip that starts at JFK).
In addition, while a cheap upgrade may be available, "cheap" may be a relevant term as it would be a change of fare basis (albeit I believe from Y to J). POUGs are not normally offered on multi-leg trips.