Guangzhou Feitengchong&;s direct flight is from China Eastern Airlines and stops in Kunming. If your relatives&; free air tickets for China Southern Airlines are not limited to the departure city and the arrival city, they can be exchanged for CZ3949, CZ3463 and CZ3405 (sorted by departure time) from Guangzhou to Chongqing and CZ8145 from Chongqing Feitengchong.