I need to fly to the USA (Florida) and then Back here to Switzerland.

What are the current restrictions / requirements I need to follow?

I need to go first of next Month (April) for a week

I'm not confident in what I've read is accurate about restrictions.

Jamboree,

For your CH-US leg, please read the CDC requirements set forth in the testing order posted on their website and published in the Federal Register on Jan 28:

https://www.cdc.gov/quarantine/fr-pr...tive-test.html
https://www.cdc.gov/quarantine/pdf/G...ncrypted-p.pdf

Applies whether you are a US citizen or a resident. As the airlines bear the cost of mistakes, they are being strict about having test results on hand to board the plane.

Someone else will be along, I'm sure, to direct you to the CH requirements on your return. Say hi to FL for me (I recently moved out).

For Switzerland:

entry form, negative covid test and, of course: quarantine when you arrive

https://www.bag.admin.ch/bag/en/home...nreisende.html

https://www.sem.admin.ch/sem/en/home...countries.html

US asks for a 10 day quarantine upon arrival, not sure if they make exceptions for short stays though.

Adding to the above, reality is that restrictions until April may vary.

Your airline has all the information. Check with them now and within a couple of days of travel.

If you can, avoid travelling via an intermediate country. If your flight is disrupted you might have to meet the rules for that country too.

You need a negative Covid test no more than 72 hours before you fly. You're supposed to test again 3-5 days after arrival AND isolate for 7 days. But it's hard to tell whether that last bit is mandatory (must vs. should).

The USA is presently accepting rapid tests if they're from a proper lab with all the right info.

However, airlines and the airports you transit through might have different rules. So check ALL of that. The CDC page doesn't say the info must be in English, but the airline decides whether or not to let you board.

Example: I recently looked at a flight that would transit via Amsterdam. The KLM website had a yellow banner saying that you need a negative PCR test not more than 72 hours before the flight AND a negative rapid test not more than 4 hours before the flight. No thanks. Weirdly, Air France's website didn't display this info, or if they did it wasn't as obvious.

Edit - You also need to sign an attestation form, stating that the test information you provide is true and correct, and that if you've falsified it you've broken the law. Here's the PDF:
https://www.cdc.gov/quarantine/pdf/a...21-01-12-p.pdf