Japan has finally opened its door to the individual tourists, after closed its boarder for over two years. We are seeing many business class seats for Japan Airlines® for 3+ seats on American Airlines and Alaska Airlines® mileage programs. They only cost 60K miles to fly from US to Tokyo. You can even visit another Asia city for total of 65K miles, thanks to Alaska Airlines® Mileage Plan one-way stopover. We had documented how to achieve this type of booking in the other post.
Japan Airlines® has one of the best business class product in the world. All the seats, Sky Suite®, provide direct aisle access. It comes with top notches soft product as well. You should be able to find many great reviews on its business class products.
There are plenty of ways to earn American Airlines® AAdvantage® miles, like co-branded credit cards. It is also the transfer partner of the BILT® credit card, which is the only credit card so far allowing you to earn miles while paying rent.
Unlike American Airlines®, Alaska Airlines® allows one-way stopover. With additional 5,000 miles at the total of 65K miles, you can visit Tokyo and one other Asia city. Alaska Airline® has sign up bonus of 40,000 to 80,000 miles for its co-branded credit card. Also, it constantly runs buy-miles promotion for 60% bonus miles. So, if to buy all 65K miles needed to visit two Asian cities, including Tokyo, it would cost less than $1,300. It is indeed a very good bargain!