Vacations to Go offers a Royal Caribbean 5-Night Mexico Cruise for Two bundled with $50 Onboard Credit with prices starting at $638. (Scroll down to find this date.) Assuming you use the credit, that's the lowest price we could find by $50. This roundtrip cruise aboard the Independence of the Seas departs from Fort Lauderdale, FL, on January 14, 2017 and includes stops in Cozumel and Costa Maya, Mexico. Additional fees and taxes may apply. Book this travel deal by November 7.