Originally Posted by
off-shore
On a different note, Aegean sells A31610 & A31606 (FRA-LHR-FRA), which are codeshared LH flights. It might be interesting to see if the upgrade-vouchers work if booked as A3 flights. I will have a look into the info from Aegean.
I do not expect the upgrade vouchers to work on LH operated flights, nor do I expect codeshares to count for the '4-flights on A3 discount'.
Perhaps an affordable way of doing FRA-LHR with Aegean is folding in two rountrips:
FRA-ATH-FRA
ATH-LHR-ATH
However be aware that if you miss one of the connections in Athens, the rest of that itinerary will be canceled due to no-show.