Carnival offers a central page that serves as a clearinghouse for their deals. You choose the month and the desired duration of the trip, they show you the offers. For example, choosing "July" and "6-9 days" shows 48 cruises to Alaska, Caribbean, and Mexico. A seven-day Southern Caribbean cruise from San Juan is offered beginning at $399 USD before fees. Check the status of any cruise involving a port in Mexico, as schedules changed during the swine flu outbreak.
eCruises.com offers summer deals from its home page. Most of these are last-minute deals involving perhaps a handful of empty cabins, so expect offers to come and go very quickly. One page offers three-day Royal Caribbean late summer cruises from $229.
Many budget travelers find touring Europe by cruise ship is far less expensive and more efficient. You give up your ability to stay an extra day in an interesting place, but for first time travelers to Europe, it can be a good choice. Norwegian Cruise Line has posted some summer cruises in Europe. Some of these are 12 day trips. Buy early enough and you could pay as little as $899.
Royal Caribbean offers a variety of seven-day Europe itineraries from $699.
Go Today.com offers round trip airfare and hotel in London from New York starting at $749 USD/person. That is a full $400 lower than last year at this time! The lowest prices are offered in late summer. Early September rates start at under $700.
Spirit Vacations offers short Caribbean getaways (as short as three days) from $399. Check out their packages for Florida as well.

