This deal has expired, but be sure to check out our Top 25 deals of the week for savings on trips to destinations around the globe

River cruise ships take travelers where large mainstream cruise lines simply cannot go, allowing passengers to experience a destination past the port. In an effort to convince travelers to opt for the "river route," the boutique cruise line, Uniworld, is offering free airfare to overseas departure ports in Europe, Russia, and Egypt. In order to take advantage of this 2-for-1 special, the first passenger must pay the published brochure rates on a 2009 cruise, and in turn their companion receives free airfare from the United States.

Although this 2-for-1 special does not end until February 27, if you hustle, you can also save up to $600 per couple by combining the 2-for-1 deal with the Early Booking Discount which ends January 31. Plus, Uniworld cruises are all-inclusive, so you won't be shelling out for extras like shore excursions, spirits, and entertainment.

The Catch: Up to $200 in government taxes and fees are not included in this rate.

To learn more, visit www.uniworld.com.