United is selling MileagePlus miles with a bonus of up to 95% through 11:59 p.m. Central Time on October 31, 2026. The top bonus applies to purchases of 20,000 miles or more. Some members may see a different offer, so check the bonus in your account before you buy.
How the Bonus Tiers Work
The bonus grows with the size of your purchase:
- 2,000 to 4,000 miles: no bonus.
- 5,000 to 19,000 miles: 75% bonus.
- 20,000 miles or more: 95% bonus.
United sells the miles through Points.com, and the 95% tier works out to 1.93 cents per mile.
Purchase Limits
You can buy up to 50,000 miles in any 90-day period, and bonus miles count toward that cap. The annual limit is 200,000 miles per account per calendar year.
Before You Buy
Price the award first. Our guide to whether buying United miles is worth it covers the cases where the math works.