Cruise.com offers a Carnival Cruise 6-Night Caribbean Cruise for Two
bundled with a $25 onboard credit
with prices starting at $638
. That's $40 under our mention from five weeks ago and the lowest rate we could find for this cruise by $80. This roundtrip cruise departs from Miami, FL, on November 4 with stops in Key West, FL; Georgetown, Grand Cayman; and Montego Bay, Jamaica. Some restrictions may apply; fees, government taxes, and fuel supplements are additional. Deal ends September 9.