United Is Offering Up To A 100% Bonus On Purchased Miles Through The End Of The Year

In the interest of full disclosure, One Mile At A Time earns a referral bonus for anyone that’s approved through some of the below links. These are the best publicly available offers that we have found for each card. Please check out our advertiser policy for further details about the partners we work with. Thanks for your support!

Last week United ran a one day sale for the purchase of MileagePlus miles, and now they’re back with another bonus on purchased miles, valid through the end of the year. Through 11:59PM CT on Sunday, December 31, 2017, United is offering a variable bonus on purchased miles, of up to 100%. You’ll have to log into your MileagePlus account through this link to see what offer you’re targeted for.

The promotion is tiered, and assuming you’re targeted for the bonus bonus, you’ll earn miles as follows:

  • Buy 5,000-19,000 miles, get a 25% bonus
  • Buy 20,000-39,000 miles, get a 40% bonus
  • Buy 40,000-69,000 miles, get a 75% bonus
  • Buy 70,000-75,000 miles, get a 100% bonus

We don’t ever see bonuses bigger than 100% on purchased United miles, but rather the key variable seems to be how many MileagePlus miles you have to buy in order to unlock the biggest bonus. In this case you need to buy at least 70,000 miles to get the 100% bonus. Here you could purchase a total of 150,000 miles (including the 100% bonus) for $2,821.88, which is a cost of ~1.88 cents per MileagePlus mile.

A member can purchase at most 150,000 miles per year (including any bonuses), and it can take up to 48 hours for purchased miles to post to your account. Personally I value MileagePlus miles at ~1.3 cents each, though there are ways to get more value out of them than that. I wouldn’t recommend proactively picking up MileagePlus miles for ~1.88 cents each, but with a specific use in mind it could make sense to buy miles.

Redeem your MileagePlus miles for travel in EVA Air business class

If you’re looking to earn United miles, MileagePlus is a Chase Ultimate Rewards transfer partner, so you can convert Ultimate Rewards points into United miles at a 1:1 ratio. This is a great use of points earned on cards like the Chase Sapphire Preferred® Card and Ink Business Preferred℠ Credit Card.

United mileage purchases are processed by points.com, so buying miles wouldn’t qualify as airfare spend. If you do buy miles, you’ll first want to use a credit card where you’re meeting minimum spend, and then use a card that maximizes your return on everyday, non-bonused spend, like the Starwood Preferred Guest® Credit Card from American ExpressCiti® Double Cash CardThe Blue Business℠ Plus Credit Card from American Express, etc.

Were you targeted for a 100% bonus on purchased United miles?

Regarding Comments: The comments on this page have not been provided, reviewed, approved or otherwise endorsed by any advertiser, and it is not an advertiser's responsibility to ensure posts and/or questions are answered.


  1. I know you’re trying to make a living and I know the disclaimer is immediately above, but…

    “You’ll have to log into your MileagePlus account through this link to see what offer you’re targeted for.”

    No, you do not “have” to use your link. Just log into your MileageMinus account.

    Do better!

    And yes, fanboys, I know I don’t have to read the blog, yada yada. Your acceptance of misleading and deceptive practices duly noted.

  2. I wonder how many people will be eligible to take up this seemingly generous 100% offer. Certainly not me! Seems to me the only ones are those who have been quite inactive in buying miles all year, as those buying and burning throughout the year will have already hit the buy ceiling, given the way United calculates that limit.
    Which made me wonder (again); what is the purpose of any limit in these days of not especially good value? Why not just abolish it altogether? Many miles apparently simply just expire (big win for United!), and many more are wasted on poor value domestic travel, and buying overpriced junk from their shop. Seems United has nothing to lose, and a lot to gain!

  3. Have you tried to book a first class award on a United non-direct flight recently? It is virtually impossible to get first class for the entire trip even though they charge you full first class mileage for the entire trip.

    I wouldn’t recommend buying United miles if the bonus was 200%.

  4. I got in on the last United promo, but this one looks too pricy. At 1:1, the last promo was really nice and I know just where those miles will go – first class to Maui this summer. My targeted upgrade wouldn’t have gotten 2/3rds of those miles for the same price, so I’ll pass. I hope I don’t sound greedy but the 1:1 offer was so nice that I’ll be sticking to those when they come up and when I can afford them.

Leave a Reply

Your email address will not be published. Required fields are marked *

* I consent to the collection of my name, email address, and content so that One Mile at a Time may manage comments placed on this site.