MSC Cruises offers an MSC 7-Night Eastern Caribbean Cruises for Two with prices starting from $858, as provided by ShermansTravel. (It's the first offer on the landing page.) That's $100 below our mention from last week and the lowest price we could find for such a cruise next month by $140. This roundtrip cruise aboard the MSC Seaside departs from Miami, FL, on March 31. Book this travel deal by March 30.