Based on flight volume data, Beijing Capital is the most popular airport that Grand China Air uses. Wuhan and Harbin are the next two most visited by Grand China Air.
No, you will need to book a flight with Grand China Air out of Sanya Phoenix Intl because the airline doesn’t have scheduled flights from Bangkok Suvarnabhumi at this time. If you still wish to fly from Bangkok Suvarnabhumi, then consider booking with ซื่อชวนแอร์ไลน์.