Through April 20, 2015, United is offering up to a 30% discount on purchased miles. The size of the discount depends on the number of miles you buy, with the largest 30% discount kicking in at 30,000 miles purchased.

Screen Shot 2015-04-05 at 11.13.49 PM

United miles normally cost 3.5 cents per mile plus a 7.5% tax, bringing the full price to 3.76 cents each. During the sale the prices are:

  • 2k to 4k miles, 10% off: 3.39 cents per mile
  • 5k to 14k miles, 15% off: 3.20 cents per mile
  • 15k to 29k miles, 20% off: 3.01 cents per mile
  • 30k to 150k miles, 30% off: 2.63 cents per mile

Buying 30,000 miles–the fewest you need to purchase to get the biggest bonus–costs $790.13.

Screen Shot 2015-04-05 at 11.14.10 PMIs This a Good Deal?

No, this is a terrible deal. Since United’s huge devaluation last year, I value United miles at around 1.5 cents. While the bottom line on all mileage sales is that they’re a good deal if you have an immediate, high-value use and not a good deal otherwise, there are few United awards for which you’ll get more than 2.63 cents of value per mile.


To figure out if you have a high-value use, use this simple expression:

(A – B) / (C + D)

  • A: Value of the award. Important: this is the lesser of the cash price and your subjective value.
  • B: Taxes on the award
  • C: Miles used on the award
  • D: Miles you would earn if you purchased the award ticket with cash

This will spit out the dollar value you are getting for your miles. If that number is greater than 0.02, and you can book the dream award now, buy during this promotion. Otherwise, don’t buy.


Bottom Line

You can buy 150,000 United miles for 2.63 cents each. That’s way too high to buy speculatively. Hopefully cheaper sales come along.

United sales are processed by, so you do not get category bonuses on cards that bonus airline or travel purchases like my latest card, the Citi Prestige® Card which offers 3x on purchases from airlines. (By contrast, AA’s sale of miles for 2.00 cents each is processed by AA, so you do get bonus points for buying the miles with a Prestige.)

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