https://awardwallet.com/airlines/united-mileageplus/multiply-your-miles/
Multiply United MileagePlus Miles: Boost Recent Earnings up to 6X
Apr 8, 2026 - With United's miles multiplier promotion, you can multiply the miles you've earned in the last month by up to 6X, but should you?
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https://blog.frequentflyerbonuses.com/2016/12/united-mileageplus-up-to-100-bonus-when.html
United MileagePlus: Up to 100% Bonus when you buy MileagePlus miles - Frequent Flyer Bonuses
Dec 11, 2023 - United MileagePlus offers targeted bonuses for purchasing miles, with some members eligible for up to a 100% bonus.
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