Amex Membership Rewards → ANA: 30% transfer bonus

American Express is offering a 30% bonus when you transfer Membership Rewards points to ANA Mileage Club, through October 15.

ANA's distance-based chart still prices US–Japan business class well below most competing programs, and this bonus pushes the effective transfer ratio past 1.3 points per Amex point.

The catch: ANA's own award search only shows partner space a few weeks out for most routes, so this is best used for last-minute trips or paired with a calendar view once space opens up.