To register, visit AA's website, where you'll enter all the basic info and what milestone you're celebrating. You'll automatically receive 350 AAdvantage miles, but you can also get 350 additional miles by sharing your milestone on Facebook, Twitter or through email. The promotion is active through 1:00pm EST (12:00pm CDT) on June 1, 2016, so act fast. The miles you get will post to your AAdvantage account within 6-8 weeks after the promotion ends.
While these easy 700 AAdvantage miles won't exactly get you a free flight, there's really no reason not to sign up.
H/T: One Mile at a Time
