Other European Frequent Flyer Programs - Is the flight BFS-GVA seasonal on Easyjet and Jet2?

I want to fly from Belfast to Geneva in June. To my surprise, I cannot see any available flight from 15 April 2012 on both Easyjet and Jet2 onwards.

I just wonder if these flights are seasonal. Thanks for your answers in advance!

Yes only flights for winter. Only other direct option is Aer Lingus from Dublin which will operate at 9 weekly.

Yes only flights for winter. Only other direct option is Aer Lingus from Dublin which will operate at 9 weekly.

Thanks! The only problem is Aer Lingus has much more expensive tickets. :(