US Airways: Up to a 100% Bonus when buying Dividend Miles (Mystery Bonus)

US Airways has launched another monthly buy miles promotion. This time it is called 'the Mystery Bonus' as you won't know what bonus is being offered to you until you log in to your account. If you are one of the lucky ones to get the 100% bonus then the offer is, as always, a very good deal to take advantage of if you will be using the miles within a few months (it is not a good idea to buy to only hold onto them for a long time period as the value can be quickly eroded by a program devaluation)

Here is the offer as it appears on our Dividend Miles Bonus Miles page:

Earn up to 100% Bonus Dividend Miles (Mystery Bonus) when you buy Dividend Miles. Every Dividend Miles member will be the lucky recipient of 25%, 50%, 75%, or a full 100% bonus miles when they buy or gift miles - up to 50,000 miles. Full Details Until Mar 26, 14

If you are one of the lucky ones, the promo allows you to buy up to 50,000 miles (so 100,000 in total with the bonus) at 3.5 cents per mile (effective rate is 1.75 cents per mile) plus taxes of $131.25 for total of $1881.25. Considering that can get you a business class ticket between North America and Europe or Asia that can cost a lot more than that, this is a good deal! Since US Airways allows 3 day holds on award tickets you can always find the award flights you want before you buy the miles and therefore you don't have dole out a hefty chunk of change just in case you cannot find availability for your preferred award flights.

This also a good way to get American AAdvantage Miles as Dividend Miles will  be integrated into the AAdvantage program once the AA/US merger is complete.