Through May 31, 2013, when you buy or gift miles, you can get or give up to a 100% bonus – up to 50,000 miles.
- Buy/gift 5,000 – 9,000 miles, get a 25% bonus
- Buy/gift 10,000 – 19,000 miles, get a 50% bonus
- Buy/gift 20,000 – 29,000 miles, get a 75% bonus
- Buy/gift 30,000 – 50,000 miles, get a 100% bonus
Another gem of their award chart is travel within North Asia, which comes out to 25k miles for economy and a measly 30k miles for biz. But remember that in order to maximize this offer, you'll want to buy at least 60k miles (after bonus) for $1,128. That will top off 2 roundtrip biz flights from Sapporo to Hong Kong for only $564 each!
Keep in mind that when booking partner award flights with US Airways, you'll have to face incompetent phone agents and a $50 partner award booking fee. Several calls may be required to book the actual flights that you want, but you still can't complain about an around-the-world business class flight for only $1,692. If you're going to jump the gun, do it soon because US Airways is merging with American Airlines later this year with a consolidated frequent flyer program to go into effect next year. Your miles will definitely be safe, but AA's award chart is not as lucrative for travel to and within Asia.