And withdrawn from the Steam store.
If you already own it you get to keep it but if you don't you cant buy it anymore.

https://steamcommunity.com/app/441920/discussions/0/135513549098947385/

What? That makes absolutely no sense... even if they were to expand on the sim they are making, why the need to retire Flight School?

I bought it on day 1 but only because it was pretty cheap. Fun little title to relax, nothing major.

But i'am afraid that a proper flight sim is too big for DTG. Seeing how CSX is a bit of a mess, unfinished, poorly optimized with weak physics i don't have high hopes for their flight simulator.

I wish them well, i hope they patch CSX, i really want to get it some day but a flight sim is a whole different ball game. It's good we have P3D and X-Plane to choose from.

That was unexpected. Hopefully it's because they feel the new simulator will make Flight School redundant.