To change a flight on ANA (All Nippon Airways), visit the official website and click “Manage Booking.” Input your reservation number and passenger details to retrieve your trip. Select “Change Reservation” and choose your new flight. Depending on your ticket class and fare conditions, change fees and fare differences may apply. Some international fares allow free changes within 24 hours of booking. If online changes aren’t permitted, call ANA’s customer service or visit a local office. Changes should be made as early as possible to secure seat availability and avoid higher costs.