I noticed today that Alaska Airlines is offering a double miles promotion much like the one Delta started a few weeks ago.  Simply fly Alaska/Horizon and Delta on the same ticket and receive double miles.  Registration is required, and travel must be completed between 9/15/10 and 11/15/10.

Alaska’s Mileage Plan is an interesting program, and a great alternative for many.  I’m especially attracted to the ability to earn miles when flying not only Alaska but Delta AND American.  I briefly considered switching my Delta accumulation to Alaska this year, but elected to give SkyMiles one more try for the forthcoming program year based on several improvements they’ve made.  I’ll be watching.