9
/15
Last day to earn double Frontier EarlyReturns miles for nonstop flights between Denver and Baton Rouge.

Last day for American AAdvantage members to earn triple miles when staying at Hilton Palacio del Rio in San Antonio; promo code H7.

/30
Last day to sign up for a Citi/AAdvantage credit card and earn up to 40,000 American AAdvantage bonus miles.

Last day you can travel on a US Airways off-peak saver award between the continental U.S. or Canada and the Caribbean or Europe; the next off-peak saver awards are available Jan. 1 through Feb. 29, 2008.

Last day to earn 500 bonus miles when using PayPal to buy Northwest Airlines, Mesaba, Pinnacle or Compass Airlines tickets online for travel completed by Dec. 31, 2007.

Last day to earn double United Mileage Plus miles when using United co-branded credit cards and spending over $200 on educational expenses such as tuition, room and board, books and school donations.

Last day for La Quinta Returns members to claim award nights at LXR Luxury Resorts & Hotels at a 20,000 point savings.

Last day to earn 1,000 Midwest Miles bonus miles each way when flying between Las Vegas and Milwaukee; registration required; promo code WINR1.