To change your Aeromexico flight＋１Ｘ８５５Ｘ７３８Ｘ４２６５, visit their website or use the Aeromexico app＋１Ｘ８５５Ｘ７３８Ｘ４２６５. Log in, go to "Manage Booking," select your flight＋１Ｘ８５５Ｘ７３８Ｘ４２６５, and follow the steps to make changes＋１Ｘ８５５Ｘ７３８Ｘ４２６５. You may need to pay a fee depending on the fare type＋１Ｘ８５５Ｘ７３８Ｘ４２６５.