The first place (at any time of year) to look for winter cruise deals is the last minute special offers pages on the individual lines' Web sites. A good example is Carnival.com, where you can click on "cruise specials and deals" to see what's offered.
A similar page at Norwegian Cruise Line posts winter itineraries that are "on sale." For example, one recent search revealed a nine-night round trip Caribbean cruise leaving from Miami in January from $549/person.
Travelocity.com has a page devoted to Celebrity cruise last minute deals that is updated frequently and includes great seasonal buys.
Cruises.com advertises a Last Minute Deals featuring major lines and a variety of discounts.
As with airfares, bargain cruises are offered to fill empty space and disappear quickly. If you find a price that looks good for dates that work with your schedule, be ready to book it.

