American Airlines has a promotion for sharing miles and is charging lower starting price combined with up to 30% discount until March 31, 2013. You can access this offer here.
Sorry, but these share miles offers makes absolutely no sense at all and are simply a money grab for American Airlines. Essentially, you are paying American Airlines just moving miles from your account to someone else’s account.
The price of sharing 50K American Airlines miles is $385 + $30 processing fee. You might as well issue an award from your account to someone else and there is no fees for doing this.
The only reasonable share miles offer that I have seen was from US Airways last year. They doubled the number of miles shared and you ended up paying 1 cent for every new mile minted. That was the best mileage purchase offer last year.
Here are the terms and conditions of this offer:
shareAAmiles® Terms and Conditions: Members must transfer 5,000-50,000 miles in a single transaction through the shareAAmiles® program beginning 12:00 am Central Time, March 4, 2013, until 11:59 pm Central Time, March 23, 2013, to be eligible for the discount. Transfers between 5,000 and 25,000 miles will receive a 20% discount off the mileage transfer cost. Transfers between 26,000 and 40,000 miles will receive a 25% discount off the mileage transfer cost. Transfers between 41,000 and 50,000 miles will receive a 30% discount off the mileage transfer cost. Discount applies only to mileage transfer cost and does not apply toward the $30 transaction processing charge. Please allow 72 hours for transferred AAdvantage® miles to post to the designated AAdvantage account. Transactions are nonreversible and nonrefundable. Members may transfer up to 100,000 AAdvantage miles (in increments of 1,000 – 50,000 AAdvantage miles) and receive up to 100,000 miles (in increments of 1,000 – 50,000 AAdvantage miles) per AAdvantage account, per calendar year. AAdvantage miles transferred do not count toward elite-status qualification or Million MilerSM status.