Cruise.com via ShermansCruise offers a 5-Night Royal Caribbean Cruise Line Cozumel Cruise for two, with prices starting from $635. That's $23 below our mention from last week and the lowest price we could find for such a cruise in November by $117. Book this travel deal by May 31. Buy Now Tips On the ShermansCruise landing page, scroll to the bottom and click "Book Now" next to the November 15 sailing date.