https://github.com/WouterEekhout/MMM-Tado/issues/18
There is a fix from an user. Maybe give it a try 😁

Hello guys. Absolute beginner in coding. I would like to make my own module with Flight prices.
As default I will have:

token: "MyToken",
api_host: "travelpayouts-travelpayouts-flight-data-v1.p.rapidapi.com",
api_key: "MyApiKey"

And as options I will have:

origin: "AAA",//Airport 3-Letter code
currency: "EUR",
depart_date: "2022-06-12",//format YYYY-MM-DD
return_date: "2022-06-19",//format YYYY-MM-DD
destination: "BBB"//Airport 3-Letter code

Is there anyone who can create a right code (module) for this situation? If this is too stupid to ask, or if this already exists, please let me know :(