According to some quick Googling, JER-ACE is 2450km, the range of an ATR 72-500 is around 1300km, based on a cruising speed of 500km/h and a stop roughly on the direct route (Lisbon?) you would be looking at 6 hours (ish) each way... Think this is probably to get people excited and then offer them somewhere like Malaga instead at the end of it.