Offer Details: Two for One Airfare Savings Offer valid on new reservations only when reservations are made by March 15, 2015. Two for one airfare, valid on new reservations based on twin accommodations. Offer valid on The Legendary Blue Danube River Cruise, on May 4 and September 27, 2015 departure dates aboard the MS Amadeus Elegant, on all stateroom categories. Limited Space Available. Reservations based on first come, first served. Staterooms based on availability. This offer may not be combined with any other promotional offers, but may be combined with Mayflower Money, First Time Traveler Certificates and Referral Rewards. Make your new reservations by March 15, 2015. Please mention EGDAN21 at time of reservation.