You fly from Genève Aéroport or land here ?
Travel comfortably in Switzerland without your luggage. You will have your hands free and serene mind while enjoying your holidays in a relaxed atmosphere. SBB transport your luggage from a selection of train stations in Switzerland to Genève Aéroport station or vice versa and you pick them up two days later.
You can also have your luggage transported from your home to Genève Aéroport station or vice-versa and pick them up two days later.
Contact
https://www.sbb.ch/en/station-services/services/luggage/luggage.html