Today Only: United Is Offering Up To A 100% Bonus On Purchased Miles

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For today only — through 11:59PM CT on Wednesday, April 4, 2018 — United is offering up to a 100% bonus on purchased miles. 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: