Vacations To Go offers a Carnival Cruise 8-Night Eastern Caribbean Cruise for two with prices starting at $958. (If prompted, sign up for the free newsletter to see this deal.) That's $2,900 off and the second-best price we've seen for an 8-night Caribbean cruise. This roundtrip cruise aboard the Carnival Splendour departs from New York, NY, on May 24 with stops in St. Thomas, U.S. Virgin Islands; St. Kitts; Antigua; St. Maarten; San Juan, Puerto Rico; and San Juan, Puerto Rico. This travel deal ends May 2.