Plugin - FSEconomy
FSEconomy is a “persistent world” plugin platform that allows players to earn virtual in-game money, as a reward for their flights. It is not a virtual airline platform, however you are definitely able to do this using FSEconomy. Perhaps it is best explained by the developers themselves:
“The basic concept of FSEconomy is that players use aircraft to move virtual passengers or cargo. Players can own their own aircraft, or rent them from other players or from “the system”. Players must be aware of their aircraft’s capabilities and fuel levels so that they can carry the cargo selected, or to not become stranded at an airport without fuel. There are many expenses associated with every flight - rental charges, fuel costs, etc.; as well as income from the virtual passengers or cargo. The goal is to make more income than associated operating expenses.”
With so many new simmers out there, FSEconomy is a great way to meet new people and make some friends in the beautiful virtual skies of MSFS2020.
FSEconomy.net provides this guide to newcomers, on getting started.