Jan 21, 2015 - 7:34 PM
Welcome to MySwissAlps, Ged Heaney!
With a 7 day Regional Pass Lake Geneva, you get 3 days of free traveling. On these days the train between the airport and Geneva is for free as well. On the remaining days, a 50% discount applies. So if you'd travel between the airport and Geneva on a non-free travel day, you would get 50% off. It's explained at the validity page.
However, if you book a hotel in Geneva, you'll get a free Geneva Transport Card. This allows free transportation within the city of Geneva and free transportation between the airport and Geneva. This way, your two airport journeys by train would be fully covered too.
Does this help you out?