Buying miles is the easy way to get award travel, and gifting miles lets you help friends and family members reach their award travel goals quickly. You’ll get a 50% bonus – up to 50,000 bonus miles – when you buy or gift miles through February 28, 2013.
Buy 10,000 miles → Get 15,000 miles
Buy 25,000 miles → Get 37,500 miles
Buy 50,000 miles → Get 75,000 miles
Buy 100,000 miles → Get 150,000 miles*
Jan 31