Chase Sapphire Reserve℠

Should I Buy United Miles?

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TPG Twitter follower @MrBanilla16 tweeted me @thepointsguy about a United buy miles promotion he was targeted with:

“Should I buy united miles? I just got an email about it – 30% discount after I buy more than 10,000. Is it worth the price?”

Long story short, no, you should avoid buying miles when possible. Especially because right now, US Airways – another Star Alliance carrier – has a super lucrative 100% bonus on shared miles, which essentially creates new miles for about 1.1 cents apiece – less than half of what you’ll pay to buy United miles (which will cost you 3.5 cents apiece plus a 7.5% excise tax).

US Airways also actually has a better award chart than United in many respects since certain redemptions provide an amazing value. Some examples include just 90,000 miles for roundtrip business class award tickets from North America to Asia, and 110,000 miles for roundrip business class award tickets from North America to the South Pacific (including Australia and New Zealand) and South Africa (which I actually took advantage of myself to fly South African Airways business class back in January), as well as some great off-peak award values.

United miles are expensive compared to US Airways' right now!
United miles are expensive compared to US Airways’ right now!

Now, US Airways miles are definitely not as flexible as United’s in many respects since you can only book roundtrip awards whereas you can book one-way awards with United, and once you start an award itinerary on US Airways you cannot make any changes to it, so you should have firm plans before you book your trip.

In general, if you can leverage those really lucrative buy or share miles promos, or even take advantage of the frequent 100% bonuses that another Star Alliance carrier, Avianca, has been offering over the past couple of years (though that can get a bit complicated in terms of redemptions), you can definitely get some better values than a mere 30% discount on United miles.

So I would recommend against this for you unless you have a very high-priced redemption that you know you can use these miles for or you just need a few to top up for a specific upcoming redemption – and remember, if you have one of the premium Chase cards that earn Ultimate Rewards points – including the Sapphire Preferred, Ink Plus and Ink Bold – you can always transfer those points to your United account instantly at a 1:1 ratio to top it up for an award.

Ink Plus® Business Credit Card

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  • Earn 60,000 bonus points after you spend $5,000 on purchases in the first 3 months from account opening. That's $750 toward travel when you redeem through Chase Ultimate Rewards®
  • Earn 5 points per $1 on the first $50,000 spent in combined purchases at office supply stores and on cellular phone, landline, internet and cable TV services each account anniversary year
  • Earn 2 points per $1 on the first $50,000 spent in combined purchases at gas stations and hotel accommodations when purchased directly with the hotel each account anniversary year
  • Earn 1 point per $1 on all other purchases—with no limit to the amount you can earn
  • No foreign transaction fees
  • Employee cards at no additional cost
  • $95 Annual Fee
Intro APR Regular APR Annual Fee Foreign Transaction Fee Credit Rating
N/A 15.49%-19.49% Variable $95 0% Excellent Credit