Capital One

Capital One → Japan Airlines Mileage Bank 30% Transfer Bonus

Capital One's normal 4:3 transfer ratio to JAL Mileage Bank gets a significant upgrade through April 30 — a 30% bonus brings it to nearly 1:1 (1,000 Capital One miles → 975 JAL miles). Best for travelers targeting JAL or ANA business class to Japan and Asia. Eligible cards: Venture X, Venture, VentureOne, Spark Miles.