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If you’re looking to stock up on United MileagePlus miles, now’s a great time to do so. United is running a flash sale for buying miles, giving MileagePlus members the opportunity to get up to a 100% bonus through midnight on June 13. When maximized, you can buy United miles for as low as 1.88 cents each through this promotion.

Why Should I Buy Miles?

Let’s get one thing out of the way: Buying miles makes sense only for certain travelers. It’s obviously much better to earn United MileagePlus miles through credit card sign-up bonuses. If you’re looking for good options, the United Explorer Card is offering a 40,000-mile sign-up bonus right now after you spend $2,000 on purchases in the first three months your account is open.

With United miles, it rarely makes sense to buy miles when you can almost always get United miles at two cents apiece with this technique. To get a rate lower than that, you’re going to need a huge bonus promotion. But right now United is delivering just that by matching the best bonus rate we’ve ever seen: a 100% bonus.

Remember, you’re only going to want to take advantage of buying miles for the right redemptions, and that’s generally going to be for international first or business-class flights or when you can maximize the Excursionist Perk.

Just note that this sale comes right on the heels of United’s announcement that it’s eliminating its award chart — gutting the value of United miles for United award flights starting Nov. 15. However, there’s still plenty of value to be found on United until then or on United’s partners beyond that date.

Details of This Promotion

The regular price for buying United miles is 3.76 cents per mile ($35 per 1,000 miles plus a 7.5% Federal Excise Tax). However, with this 100% bonus, you can effectively buy 80,000 to 175,000 miles at the rate of 1.88 cents per mile.

Here’s how the promotion is set up:

  • Buy 5,000 – 14,000 miles, get a 40% bonus (2.69 cents per mile)
  • Buy 15,000 – 39,000 miles, get a 60% bonus (2.35 cents per mile)
  • Buy 40,000+ miles, get a 100% bonus (1.88 cents per mile)

How to Buy United Miles

If you’re planning on utilizing this promotion, here’s how to do so:

  1. Visit United’s Buy Miles page.
  2. Click on Buy Miles Now.
  3. Enter your United MileagePlus account number and password.
  4. Select the number of miles you want to buy.
  5. Fill in the required information to finalize your purchase.

Keep in mind that the usual restrictions for purchasing United miles apply to this promotion, including the following:

  • Miles may be purchased in increments of 1,000 miles up to a maximum of 87,500 miles.
  • Members can only purchase 175,000 miles per account per calendar year, and bonus miles count toward the 175,000-mile annual limit.
  • Miles may take up to 48 hours to post to your account.
  • Purchased or gifted miles do not count toward MileagePlus Premier elite status.

Which Credit Card Should You Use

We put this exact question to the test recently. Since the purchase is processed by, you won’t earn a travel category bonus for it on most cards. However, some United co-branded credit cards — such as the United Explorer Card and the United Club Card — earned 2x United miles on the purchase. The information for the United Club Card has been collected independently by The Points Guy. The card details on this page have not been reviewed or provided by the card issuer.

At the time of our tests, the Ink Business Preferred Credit Card earned 3x Ultimate Rewards points on this purchase — netting the best 6% return on your purchase based on TPG valuations (on the first $150,000 in combined purchases each account anniversary year). However, recent purchases have only earned 1x point per dollar. As a result, you may be better off going with a card like The Blue Business℠ Plus Credit Card from American Express (2x Membership Rewards points on the first $50,000 per year; then 1x) or the Chase Freedom Unlimited‘s 1.5% cash back.

This is The Points Guy’s permanent page about United’s best “buy miles” promotions, so you can bookmark it and check back regularly for the latest offer. Keep in mind you may see some reader comments referring to older deals below.

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United℠ Explorer Card

The United Explorer card recently got some enhancements like 2 miles per dollar spent at restaurants and on hotel stays and a Global Entry or TSA Pre-Check Fee credit (up to $100). The $95 annual fee is waived for the first year.

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More Things to Know
  • 40,000 bonus miles after you spend $2,000 on purchases in the first 3 months your account is open
  • $0 introductory annual fee for the first year, then $95.
  • Earn 2 miles per $1 spent at restaurants and on hotel stays
  • Up to $100 Global Entry or TSA Pre&#10003® Fee Credit
  • 25% back on United inflight purchases
  • Check your first bag for free (a savings of up to $120 per roundtrip) when you use your Card to purchase your ticket
  • Enjoy priority boarding privileges and visit the United Club℠ with 2 one-time passes each year for your anniversary
  • Earn 2 miles per $1 spent on purchases from United, and 1 mile per $1 spent on all other purchases
Intro APR on Purchases
Regular APR
18.24% - 25.24% Variable
Annual Fee
$0 Intro for First Year, then $95
Balance Transfer Fee
Either $5 or 5% of the amount of each transfer, whichever is greater.
Recommended Credit
Excellent Credit

Editorial Disclaimer: Opinions expressed here are the author’s alone, not those of any bank, credit card issuer, airlines or hotel chain, and have not been reviewed, approved or otherwise endorsed by any of these entities.

Disclaimer: The responses below are not provided or commissioned by the bank advertiser. Responses have not been reviewed, approved or otherwise endorsed by the bank advertiser. It is not the bank advertiser’s responsibility to ensure all posts and/or questions are answered.