We just booked our tickets with Lufthansa to Athens and will be flying out of San Francisco, laying over in Frankfurt, and then continuing on to Athens. A while back I remember a someone saying that they caught the same flight (SF to Athens with a stopover in Frankfurt) and ran into problems with the German authorities at the airport because they had not filled out some paperwork or perhaps uploaded some form. I can't remember the details exactly but I believe it may have been COVID related. Have any of you experienced something like this?
We are flying with Lufthansa the entire way from San Francisco and I believe just changing plans in Frankfurt so I wouldn't think there would be a problem but I just want to make sure.
As far as I can tell from my research, it appears we just need to fill out a passenger located form for Greek authorities but I don't know if stopping over in Germany could cause some problems.