This spring or summer, let Viking River Cruises take you to the medieval castles, grand cathedrals and fairy-tale villages of the Rhine, Main and Danube Rivers. Prices start at just $2,799 per guest including FREE round trip flights and special cruise fares for these top 2020 river cruise itineraries. PLUS, you will receive half off your initial cruise deposit when you book before January 31, 2020. PLUS you will receive an exclusive on-board credit from Cruise Club of America®!