All purchase on the Delta American Express earn double miles from June 1 through August 31.
Items that already earn double miles such as restaurant and US Post Office charges do not receive additional miles under this promotion, and the limit on earning additional miles from this offer is 20,000.
Bonus miles should post towards the end of October.
Gary Leff is one of the foremost experts in the field of miles, points, and frequent business travel -- a topic he has covered since 2002.
Co-founder of frequent flyer community InsideFlyer.com, emcee of the Freddie Awards, and named one of the "World's Top Travel Experts" by Conde' Nast Traveler (2010-Present) Gary has been a guest on most major news media, profiled in several top print publications, and published broadly on the topic of consumer loyalty. More About Gary »
