Carnival Cruises 2025 Alaska Schedule. The cruises will depart every thursday and run from may 1, 2025 through september 11, 2025. Princess, holland america and ncl are all open for 2025 alaskan season.

During the 2025 alaska cruise season, the carnival luminosa is primarily scheduled to sail 7 night cruises. On and off its “fun ships,” carnival cruise line.