Norwegian Cruise Line offers a Norwegian Cruise Line 4-Night Caribbean Cruise for Two bundled with a stateroom upgrade with prices starting from $498, as seen on Travelzoo. (It's the top offer on the page.) That's the second least-expensive 4-night Caribbean cruise we've seen from Norwegian. It's also a current low for this cruise by $100. This roundtrip cruise departs from Miami, FL, on February 3 and includes stops in Cozumel, Mexico and Key West, FL. Some restrictions may apply; fees, government taxes, and fuel supplements are additional. Book this travel deal by January 10.

Of note, Norwegian Cruise Line offers other Norwegian cruises with prices starting at $279 per person. Scroll down to see them all.