[Update: Promotion has been extended until 13 July 2018]
I first wrote about how lucrative Alaska Airlines Mileage Plan miles are back in May last year when there was a fascinating 50% bonus on all purchased miles for eligible accounts but ever since then, the maximum bonus that I have seen is 40%. In any case, that very same promotion is back and you can now purchase Alaska Airlines Mileage Plan miles and get a 40% bonus if you purchase at least 30,000 miles at one go.
I have mentioned this many times and I have reiterated this over the course of a year but Alaska Airlines Mileage Plan miles are perfect for Business Class flights to Japan - it will only cost you 25,000 AS Miles each way and with a little bit of creative routing, you can almost get a return flight for the same amount. For more information, check out my review of the Japan Airlines SKY SUITE III product on the SIN-HND and HND-BKK routes.
There are so many ways to use Alaska Airlines Mileage Plan miles - you can even use it for extremely cheap First Class and Business Class flights from Hong Kong (even though you do have to position yourself there first) or you can even redeem it on Emirates (slightly more expensive now) where you can check out the famous A380 product and the on-board bar.