Delta and Northwest are running promotions for double miles when transferring miles to someone else’s Delta or Northwest account through 05/31/09
The fee for doing so is a penny per mile plus a $25 transaction fee on Northwest or a $30 transaction fee on Delta.
You can transfer up to 30,000 miles in a shot, which would give the recipient 60,000 total miles for a cost for $325 on Northwest or $330 on Delta. Of course charging it to a card like your Starwood AMEX will also net you 325-330 Starpoints on the transaction, bringing down the cost even further.
You can then transfer back the miles to your account, which will double them again. Be creative and you’ll be able to keep on going and going and going…
Northwest limits the amount of incoming miles via the inter-account transfer to 30,000 per year and the amount of outgoing miles via the inter-account transfer to 75,000 per year.
Delta limits the amount of incoming miles via the inter-account transfer to 300,000 per year and the amount of outgoing miles via the inter-account transfer to 150,000 per year.
In my experience the Northwest transfer occurs instantaneously, and the bonus miles will post immediately together with the transferred miles. The Delta transfer may take a day and the bonus miles will come within another day or two.
With this promotion you should be able to earn 90,000 Delta miles, or the amount of miles required for a Business Elite class trip to Tel Aviv during the current mileage ticket promo, for under $1,000.