There is no path from Zurich to Vienna that flies over Czech airspace, but Vienna is so close to Bratislava that (if there was a compelling need for it), a more

There is no path from Zurich to Vienna that flies over Czech airspace, but Vienna is so close to Bratislava that (if there was a compelling need for it), a more intelligent adversary than the current Belarusian government could devise a plan to divert the plane onto Czechoslovak airspace and force it to land. Probably overly cautious to hedge against that possibility (just like it was not cautious enough on Pratasievich's part to take a flight that takes it over Belarus's airspace without any diversions). But I wouldn't fly out of Vienna if I were a prominent Czechoslovak emigre. A little too geographically close for comfort.