Is there a round-trip ticket fee from Zhongjiang to Tianfu Airport?

Didi has a round-trip ticket fee from Zhongjiang to Tianfu Airport. Zhongjiang to Tianfu Airport is a one-way trip, and the driver needs to return to Zhongjiang after seeing off the passengers. The distance and time of this return trip are the costs that drivers need to consider, including fuel cost, road and bridge cost and time cost. The return ticket fee is a kind of compensation for the driver's return cost, so Didi stipulates that the return ticket fee needs to be charged. Tianfu Airport, located in Chengdu, Sichuan Province, China, is the main international aviation hub and aviation transportation hub in Sichuan Province.