Air travel might be allowed in that flights happen, but the second travelers land they are immediately sent into quarantine in some countries. Poland, for insta

Air travel might be allowed in that flights happen, but the second travelers land they are immediately sent into quarantine in some countries. Poland, for instance, requires 10-day quarantine for anyone flying into the country, even from other EU states. That quarantine is checked by requiring you to install a mandatory phone app and also by sending the police around to your address. Also, because some EU countries are claiming that crossing their borders is only allowed for essential reasons proven by documentation, the airport in the country of origin will prevent many people from even being able to board the plane in the first place.