United Airlines launched a three-day MileagePlus bonus promotion of up to 100% on award miles purchased between 2 to 4 September. The maximum bonus available is based on the number of MileagePlus members worldwide who participate. So this mean when more members buy miles, the greater everyone’s bonus can climb.
Visit united.com/100bonus to purchase and view the progress of the bonus. You will will receive a minimum 35 percent bonus on award miles purchased through the promotion. The bonus will increase to as much as 100 percent if there are more than 4,500 qualifying transactions.
Members can purchase miles in increments of 1,000 up to a maximum of 100,000 miles, and in increments of 5,000 up to a maximum of 150,000 miles. MileagePlus members must purchase a minimum of 5,000 award miles to participate in the promotion.