ANA investigates American Express points transfer failures

All Nippon Airways (ANA) has acknowledged an issue regarding American Express point-to-mile transfers that failed to appear in customers’ ANA Mileage Club accounts. The airline stated that transaction transfer files sent by the credit card issuer did not properly arrive in ANA’s system, leaving the affected transfers unprocessed.

The issue specifically affects transactions initiated around August 19, 2026, and September 3, 2026. ANA is currently coordinating with American Express to investigate the root cause and establish a recovery process for the missing miles.