Originally Posted by
v2837v
Best way with these fares is to book them and fly asap before the airline could cancel because you have commenced your journey then the airline has to let you complete the journey and cannot unilaterally downgrade you or cancel the ticket.
I clearly remember LX only allowed people to fly Y when they presented themselves at ZRH for the final leg to YUL of the RGN3 deal some six years ago. It was a take it or don't fly offer. So evidently they think they can - and do - unilaterally downgrade mid-journey.
Sheesh, has it really been six years already?!