Originally Posted by chris63

Your big problem here is that if you skip the segment ZRH-GVA on the train they could cancel your return ticket, not sure if LX will see if you took the train or not…..

Other than that you could just go to FCLE, your inbound FBP gets you access & just ask them to keep your bag, they will call the baggage team & you recover it from the baggage office in the baggage reclaim hall.

There is no transfer service from FCLE to the main terminal, you need to take the heidi train.