Alaska Airlines has once again brought back the Mileage Plan offer to give members the opportunity to pick up at least 40% more bonus miles with purchases made before 31 October 2019. In order to trigger the maximum number of bonus miles, a minimum purchase of 30,000 Alaska Airlines Mileage Plan miles (which will give you 42,000 miles in total if you have been targeted with the 40% bonus) is required.
Your account may be targeted with a limited-time 50% bonus (most of us have the maximum bonus capped at 40%) and you should definitely consider getting these miles for use on Cathay Pacific and Japan Airlines just to name a few. Singapore Airlines is a partner airline but award space on SQ metal has not opened up for Alaska Airlines Mileage Plan members (after all this time).
Do note that as usual, a tax recovery fee of 7.5% will be levied upon the total cost of miles and your Alaska Airlines Mileage Plan account may only be credited up to a maximum of 150,000 miles acquired through this method in a calendar year. You may purchase up to 60,000 miles in a single transaction up to the aforementioned cap on the number of purchased points each calendar year. MVP, MVP Gold and MVP Gold 75K Mileage Plan member accounts have no annual limit on the number of miles which may be purchased or gifted through Points.com.
Purchasing the maximum number (60,000) of miles in a single transaction will cost USD 1,650 and the tax recovery fee will be USD 123.75 - this brings the total to USD 1,773.75 for 84,000 Alaska Airlines Mileage Plan Miles (if your account has been targeted with only the 40% bonus). If you are based in Singapore, charging this to the OCBC 90°N Card will give you 4 miles per SGD so you are looking at getting at least 10,000 miles from that aforementioned transaction - the OCBC 90°N Card allows you to convert your Travel$ into miles at no cost and also at 1,000 blocks (instead of 10,000 which most banks in Singapore practice).