通过美联航 （UA）shopping portal消费累计满$250，除了portal本身赠送的常规里程之外，加送500奖励UA里程。
*During the “Back to School” bonus campaign, which runs from 07/21/16 through 08/12/16 at 11:59:59 pm ET (the “Bonus Period”). During the Bonus Period, Member will earn a one-time bonus of up to 2,000 MileagePlus® bonus award miles on qualifying purchases, in addition to the standard MileagePlus miles earned from shopping online through the MileagePlus® Shopping mall. This one-time bonus award will be determined using one of the following tiers, based on Member’s cumulative qualifying purchases made during the Bonus Period: Tier 1 bonus: 500 miles for qualifying purchases of at least $250; Tier 2 bonus: 1,500 miles for qualifying purchases of at least $750; or Tier 3 bonus: 2,000 miles for qualifying purchases of $1,000 or more. “Qualifying purchases” do not include returns, cancellations, shipping and handling, taxes, gift card or other cash equivalent purchases, and certain products that are not eligible for bonus miles. Please see the MileagePlus® Shopping mall site for details on product eligibility and other restrictions. Please allow 8-10 weeks after the Bonus Period for bonus award miles to post to your MileagePlus® Shopping account. The Tier 3 bonus provides the maximum number of miles that will be awarded. Void where prohibited by law.