Overview
- Transfers made from February 1 to 28, 2026 receive a 30% bonus, turning 1,000 Capital One miles into 975 Japan Airlines miles rather than the usual 750.
- The promotion improves value but does not reach a true 1:1 conversion, so the underlying transfer rate remains 4:3 outside the window.
- Among major transferable currencies, Capital One is the only program linked to Japan Airlines Mileage Bank, with Bilt Rewards also offering a connection.
- Japan Airlines Mileage Bank provides access to award space 360 days before departure and features attractive partner charts, including oneworld and select partners like Air France and Emirates.
- Redemptions are limited to family members related by blood or marriage, and analysts advise avoiding speculative transfers unless a specific booking is planned.