Princess Cruises offers up to 2-for-1 savings on select Summer 2018 Alaskan Cruises. (Prices listed are per-person after discount, based on double occupancy.) Save on a range of north- and southbound itineraries aboard the Golden Princess®, Coral Princess®, Star Princess®, or Island Princess®. Additional fees may apply. Book this travel deal by June 30 for cruises on select dates through July 28.