United MileagePlus members can earn double miles on nonstop roundtrip Austrian Airlines flights from New York/Newark (EWR) to Vienna (VIE) for travel between July 2, 2014 and Sept. 30, 2014. Continue Reading

Complete a booking of at least $300 through Hotels.com by June 22, 2014 for a stay to be completed by July 1, 2014 and earn a $35 Amazon.com gift card. Continue Reading

Book a stay this weekend through Rocketmiles and earn 1,000 bonus miles in addition to the 1,000 to 5,000 miles normally earned for hotel bookings. Continue Reading

Register for IHG's Vegas Fly Back and complete a minimum two-night stay by Aug. 31, 2014 at The Venetian or The Palazzo and earn an airfare credit for up to $350 towards one roundtrip airline ticket for… Continue Reading

Virgin Elevate members who buy or gift Elevate points through July 1, 2014 can earn up to a 30 percent points bonus Continue Reading

AAdvantage members can earn up to quadruple miles when staying at Shangri-La, Traders or Kerry hotels through Aug. 31, 2014. Continue Reading

Through Aug. 31, 2014, Aeroplan members can earn 1,750 bonus Aeroplan miles per stay at any Best Western branded hotel in Canada, the United States or the Caribbean Islands. Continue Reading

Omni Select Guest Gold level members can upgrade to Platinum level membership when you book at stay by June 30, 2014 to be completed before July 31, 2014. Continue Reading

British Airways Executive Club members residing in the U.S. or Canada can earn up to 100,000 bonus Avios for roundtrip transatlantic flights through Aug. 31, 2014. Continue Reading