Yossarian wrote:

Hypothetical situation: I rent a plane and fly 2 friends to city A. I drop
them off and fly back. If I pay 1/3 of the rental time and costs going
there and full amount of the return leg, that's legal, right?

Yep.

George Patterson
The optimist feels that we live in the best of all possible worlds. The
pessimist is afraid that he's correct.
James Branch Cavel