Experts from AwardWallet and NerdWallet generally recommend buying miles only if: Money + Miles - United Airlines
: Miles usually post to your account within 24 to 48 hours , though they can occasionally take up to 72 hours. buy ua miles
Buying United Airlines MileagePlus miles is a strategic way to "top off" your account for an award flight, though it generally costs more than the miles are worth unless you take advantage of periodic promotions. United frequently runs sales offering up to a or a 100% bonus , which can drop the price to approximately 1.88 cents per mile . Core Purchase Features & Limits Core Purchase Features & Limits : This flexible
: This flexible payment option allows you to use a combination of cash and a minimum number of miles to pay for a flight during checkout. Is Buying Miles Worth It? : The standard rate is roughly 3
: This feature lets you multiply the miles you earned in the previous month by up to 10x.
: The standard rate is roughly 3.5 cents per mile plus a 7.5% federal excise tax.