Originally Posted by
BlondeBomber
Further to this, has anyone had success upgrading from different accounts before flights are flown, perhaps by splitting the inbound and outbound parts of a return ticket into two PNRs?
I have, but only because the 7 day window for the return flight was before the outbound flight.
I tried a few times before the 7 day window opened for the return flight, but I was told that they can only split the PNR so I can request the return upgrade from a different account once the upgrade window opens.