Originally Posted by
pogonation
Looking to book a friend on EU-LHR-NCL. The fare is good for Y but will need 2 bags. I therefore figured I could upgrade just the EU-LHR with miles and not waste miles upgrading the domestic sector. I know this would still get LHR lounge access based on OW rules but will he get the 2 bags to NCL given in Y on the domestic sector?
A CE flight connecting on to a ET flight would not give lounge access at the connecting airport. The oneworld rules are about connecting to/from long haul on to short haul whereas your friend is doing short haul to short haul.
If you did the UuA for the EU-LHR flight your friend would only get access to the lounge at the EU starting point.