Reminder!   United’s attractive mileage sale for MileagePlus members only has a few days left.    At up to a 75% bonus, it’s one of the better deals that we’ll see from them.    Additionally, any purchase of miles enters you to win 1,000,000 miles!

The deal is tiered so the more miles you buy, the better the discount.

The brackets break down as follows:

If you buy between 5,000 and 14,000 miles, you’ll get a 25% miles bonus and 1 entry into the sweepstakes.

If you buy between 15,000 and 29,000 miles you’ll get a 50% miles bonus and 1 entry into the sweepstakes.

If you buy between 30,000 and 85,000 miles you’ll earn a 75% miles bonus and 2 entries into the sweepstakes.

In doing the math you’ll pay about 2.8 cents per mile (CPM) if you buy between 5,000 and 14,000 miles (plus 25% bonus).    Buying between 15,000 and 29,000 miles (plus  50% bonus) will give you a CPM of  2.3 cents.    Buying over 30,000 miles (plus 50% bonus) will net you a cost of 2 cents per mile.

The promo is set to expire on March 9, 2018.   You can buy 150,000 miles per year per Mileage Plus account, and the miles you buy do not count towards status attainment.