Heathrow ATC (for the ZX Spectrum) was one that I played extensively back in the day: https://spectrumcomputing.co.uk/entry/10530 I wonder if there are earlier examples of popular ATC games? They're simpler than flight simulators so you'd think there would be more of them.
Edit: playable version - https://archive.org/details/zx_Heathrow_International_Air_Tr...
The BSD Games collection has an ATC Simulator as well from around 1985:
https://github.com/vattam/BSDGames/tree/master/atc
Kennedy Approach was published around the same time.
https://en.wikipedia.org/wiki/Kennedy_Approach
Wikipedia search turns up this game from 1982: https://www.mobygames.com/game/52384/controller/ Quite graphically advanced for the time.