Traveling to Europe from banned countries on sweetheart exception
score:3
Accepted answer
For what it's worth, I should mention that I was successful traveling to Denmark via TAP AirPortugal, through Lisbon. They didn't give me any additional fuss.
Notes:
You MUST meet the requirements of your destination country, they checked all of that in the US.
You MUST have a negative Covid test valid 72 hours prior to departure. Depending on Covid testing in your area, this may be difficult. Plan ahead. Note that they DO accept "rapid" tests, which do not require a lab and return in about 15 minutes. However, rapid tests are less common than the more rigorous PCR tests, because they are less accurate.
Portugal appears to be allowing significant transfer traffic. People on the same transatlantic flight as mine were connecting to cities all over Europe.
All of this is probably subject to change at any time, especially with Vaccines, but a negative covid result less than 72 hours old will probably get you in about anywhere.