It is time of the year when there are offers from most of the airline and hotel related online shopping malls for bonus miles.
Between now and December 31, you will earn 500 bonus miles for every $250 in purchases that you make through the Mileage Plus mall. These are in addition to the regular miles that you would earn from the purchases. The bonus miles are capped at 2500 that is basically $1250 in spending. You can access this offer here.
You are essentially getting 2 extra points per dollar spend. The way I usually work these mall promotions, is to put a dollar figure to the mile earned so that I can compare them to straight cashback malls. Sometimes these airline related malls are better and sometimes they are not.
I wrote an article about getting cashback for your travel purchases and it does apply for most of other online purchases as well. You can use sites like CashBackHolic and Evreward to check the cashback percentages among multiple online malls.
Here are the terms and conditions of this offer:
Now through 12/31/12 11:59 PM EST receive 500 bonus miles with every $250 spent online through MileagePlus Shopping; up to 2,500 bonus miles. Returns, shipping and taxes are not eligible for bonus. Please allow 8-10 weeks for bonus miles to post to your account. The maximum number of bonus miles that can be awarded to each qualifying member through this promotion is 2,500 bonus miles. Increased earning opportunities are for a limited time only and at the discretion of each individual merchant. Please check site daily for updates to increased earning opportunities.