Convert my points › Capital One Miles to Japan Airlines Mileage Bank
Transfer Capital One Miles to Japan Airlines Mileage Bank: ratio, time and how
Yes. Capital One Miles transfers to Japan Airlines Mileage Bank at 2 : 1.5, so 1,000 → 750. 60,000 → 45,000.
The ratio and timing
| Step | Ratio | Example | Transfer time | Notes | Source |
|---|---|---|---|---|---|
| Capital One Miles → Japan Airlines Mileage Bank | 2 : 1.5 | 60,000 → 45,000 | TBD per UP; instant per TPG | capitalone.com · upgradedpoints.com |
Try your own amount in the converter →
Minimum and block size: At least 1,000 miles to transfer. Step size not published by Capital One. Work out the exact amount to send → capitalone.com · reddit.com
Past Capital One → Japan Airlines Mileage Bank transfer bonuses
Frequent Miler's list of past bonuses shows 4 earlier Capital One → Japan Airlines Mileage Bank bonuses since Sep 2025 at 30%. Most recent: 30%, Sep 1 – Sep 30, 2026. In the last 12 months: 3.
See all 4 past bonuses
- 30% · Sep 1 – Sep 30, 2026
- 30% · Apr 1 – Apr 30, 2026
- 30% · Feb 1 – Feb 28, 2026
- 30% · Sep 23 – Oct 22, 2025
Source: Frequent Miler expired-bonus table, checked Oct 14, 2026. Past bonuses don't promise a future one, and a bonus only helps if you have a good award to book.
Ready to transfer? Checklist
- Create the Japan Airlines Mileage Bank account first, in exactly the same name as your Capital One Miles account. Brand-new accounts are more likely to be held for review, so open it days ahead if you can.
- Find the award before you move anything. Search Japan Airlines Mileage Bank's own site (or an award-search tool) and confirm the seat or room and the exact points needed, taxes included. Award space isn't the same as cash space.
- Move the exact amount in one go. Don't do a small "test" transfer: people report that test transfers trigger fraud holds. Expected time for this step: TBD per UP; instant per TPG.
- If it's slow, call. Some airlines can hold an award while points arrive. If a transfer is stuck, call the program; holds of several days happen, and points can't be moved back.
Tips from community reports: reddit.com · frequentmiler.com. Transfers are generally irreversible.
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Related conversions
Last checked November 1, 2026. Rates change; check the program before you transfer.