Royal Caribbean Cruise Line's ship, the Mariner of the Seas has five cruises sailing in January 2026. The cheapest available Inside Cabin during this month is available to purchase for $311 before taxes and fees.
On a "per night" basis, the best deal for an inside cabin in January, 2026 is available for $77.75 per night.
January 5 - January 10, 2026
From: Galveston, Texas
Royal Caribbean
January 10 - January 15, 2026
From: Galveston, Texas
Royal Caribbean
January 15 - January 19, 2026
From: Galveston, Texas
Royal Caribbean