United MileagePlus is offering up to a 100% bonus on purchased miles through 11:59PM CT on Thursday, September 6, 2018.
This is as good as bonuses on purchased United miles get, as I don’t ever recall seeing a bigger offer from them (though they have occasionally offered similar bonuses in the past).
The promotion is tiered, and you earn a bigger bonus the more miles you buy, as follows:
- Buy 5,000-14,000 miles, get a 30% bonus
- Buy 15,000-29,000 miles, get a 70% bonus
- Buy 30,000-44,000 miles, get an 85% bonus
- Buy 45,000-75,000 miles, get a 100% bonus
If you max out this promotion you can purchase a total of 150,000 United MileagePlus miles at a cost of $2,821.88, which is ~1.88 cents per 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.
You can find the United MileagePlus interactive award chart here, for a sense of how many miles a redemption will cost.
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.
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:
Do you plan on buying United miles with a 100% bonus?