estimate for cruise cost for alaska
1 For example Royal Caribbean offers a seven-day one-way starting at $450 per person, depending on sailing date. 2  Seven-day Alaska roundtrip cruises cost about $580-$2,660 for an interior cabin per person, double occupancy, depending on sailing date, choice of stateroom and cruise line. One-way airfare to Alaska costs about $475-$650 from Seattle, $600-$750 from Los Angeles, or $375-$650 from New York, depending on airline and travel date. 2  Alcoholic beverages are typically not included and cost about $5-$7 per beer, $6-$11 wine or $4-$10 cocktails.