The new transfer partners are:CLINT HENDERSON/THE POINTS GUYJapan Airlines is the flag carrier of Japan and offers excellent premium cabin products. How to get the maximum value when redeeming milesWhat cards let you transfer Capital One miles to partners? SEAN CUDAHY/THE POINTS GUYJapan Airlines Mileage BankI'm really excited about the addition of Japan Airlines. Currently, Japan Airlines is only a transfer partner of one major transferable points program, Bilt Rewards; Bilt Points transfer at a ratio of 1:1. So, if you're looking to book the same flights mentioned above during this 30% bonus deal, you'd need to transfer:28,000 Capital One miles to Japan Airlines to book economy42,000 Capital One miles to Japan Airlines to book premium economy57,000 Capital One miles to Japan Airlines to book business class113,000-144,000 Capital One miles to Japan Airlines to book first class (depending on the date)Note that Capital One members who open a new Japan Airlines Mileage Bank account will have to wait seven days before their miles can be redeemed.