In 2026, a month-long cruise (often called a "Grand Voyage" or "Segment Cruise") typically costs between $4,500 and $12,000 per person, depending on the luxury level and cabin type. Budget-friendly lines like Holland America or Princess offer 28-to-30-day "Grand Voyages" starting at roughly $150 per day (approx. $4,500 total). Mid-range options like Viking or Oceania might range from $9,000 to $15,000, but these often include excursions, beverages, and airfare. For ultra-luxury seekers on lines like Regent Seven Seas or Silversea, a month at sea can easily exceed $30,000. When calculating the cost, remember that a month-long cruise effectively replaces your grocery, utility, and entertainment bills for 30 days, which is why "extended cruising" has become a popular lifestyle choice for retirees and "digital nomads" in the 2026 travel market.