Fortunately, the taxes are ridiculously low, so this won't do much direct harm. But it's of course totally the wrong signal to give.
https://www.tagesschau.de/inland/innenpolitik/luftverkehr-steuer-ticketpreis-100.html
Air tickets? That's the absolute worst choice. Reducing taxes on petrol for cars I might be able to understand, but air travel needs to be discouraged, doubly so in times of fuel shortage.
The actions of these de facto climate crisis denying fascists are perfectly reasonable if you consider them working for the #HeritageFoundation:
There's next to nothing that's not in line with an adapted #Project2025.

Yup I really don't how they imagine this going. "Damn that stuff is short on supply and we also need for crucial infrastructure. Great then let's make it cheaper so everyone can afford it."
Like how on earth do you overcome a shortage by making the stuff even MORE available?! In what economy does this work, even by cold capitalist standards that is so incredibly stupid.