What credit card does AirAsia use for overseas air tickets, and what is the most economical payment method?
The foreign part needs to be paid by VISA or MASTER's international credit card. I have been booking with VISA of China Merchants Bank and MASTER dual currency card of China Construction Bank. There will be an exchange rate loss through VISA/MASTER payment, which is inevitable. You can only book a one-way or round-trip ticket between two destinations, and then pay. You cannot book and pay at multiple destinations at the same time.