FTD and United Mileage Plus have teamed up for a bonus miles offer where you can essentially buy two flower bouquets and get one free. Mileage Plus members who make two or more purchases at www.insideflyer.com/link/?1838 by Oct. 31, 2009 will receive 25 miles per dollar spent plus a one-time bonus of 2,000 miles. For example, you can purchase two $55 bouquets and receive 1,375 miles plus the 2,000 bonus for a total of 4,750 miles. After the bonus miles post to your account, which can take up to four weeks, you can then redeem miles at http://insideflyerus.wpengine.com/link/?1839 for a free bouquet. The mileage required varies, but you’ll find many arrangements redeemable for 4,600 miles.

Of course, you can always just buy flowers to boost your mileage account balance, in which case the least expensive item offered is a boutonniere for $16.99. Buy two for $33.98 and you’ll receive a total of 2,850 miles.