Back on September 23, 2025, Capital One added three new transfer partners, with Japan Airlines Mileage Bank being one of them.
They kicked off that partnership with a 30% transfer bonus, then followed it up with another 30% bonus for the month of February.
Now, just a month since that previous 30% transfer bonus to Japan Airlines ended, Capital One has launched another one.
The Deal
- Get a 30% bonus when transferring Capital One miles to Japan Airlines Mileage Bank.
Key Terms
- Expires April 30, 2026 at 11:59pm ET.
Quick Thoughts
Capital One miles normally transfer to Japan Airlines on a 1,000:750 basis. This transfer bonus therefore increases that ratio to almost parity at 1,000:975. While it’s a shame that the normal ratio isn’t 1,000:1,000 as the bonus would make that 1,000:1,300, it is still possible to get good value from an almost 1:1 transfer ratio.
Nick did a deep dive into Japan Airlines Mileage Bank, so be sure to check that out in order to discover some sweet spots of their loyalty program: Air France without surcharges, around the world style awards, and more Best uses of Japan Airlines Mileage Bank Miles (Sweet Spots).
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Seems like saver award availability has dried up with all these transfer bonuses.