10
/ 21
Last day to register to earn 1,000 Northwest Airlines WorldPerks bonus miles when flying to San Juan, Puerto Rico via Detroit. Travel must be completed by Oct. 31, 2007.

Last day to earn 1,000 Northwest WorldPerks bonus miles when flying between Indianapolis and Denver. Registration is required.

/28
Last day to earn double Continental OnePass miles when you fly between Cleveland and Quebec’s Jean Lesage International Airport. Registration is required.

/31
Last day to claim an Alaska Airlines Mileage Plan coach roundtrip award ticket between the continental U.S. or Canada and Mexico for 20,000 miles, saving 10,000 miles.

Last day to earn a 50 percent mileage bonus when exchanging Diners Club Club Rewards points for Frontier Airlines EarlyReturns miles.

Last day to earn double Alaska Airlines Mileage Plan miles for flights from Portland to Boston or Orlando. Registration is required.

Last day to get a 10 percent United Mileage Plus mileage bonus when purchasing miles.

11
/15
Last day to earn double United Mileage Plus miles for roundtrip flights between the U.S., Canada, Puerto Rico or the U.S. Virgin Islands and Guatemala, El Salvador, Mexico City or destinations in South America. Registration is required.

Last day to book an American AAdvantage award ticket with India’s Air Sahara and travel must be completed by Nov. 15, 2008. The partnership is ending on this date.