Although the US Embassy Lisbon is advising people not to engage in non-essential travels, it is still permitted. You need to have in mind that proof of a negative COVID-19 test is mandatory. Your trip may be severely disrupted and there are some extra things you need to consider. For example, be prepared and have a contingency plan in case you test positive for some reason. Some medical travel insurances include pandemic coverage, because you will need to support additional hotel costs and change fees in case of positive results. 

Please don’t attempt to exit customs or board a flight with a positive COVID test, this will only delay your vacation. Refrain from same day testing at the airport to avoid surprises. Despite Portugal’s advance in vaccination and entering the last phase of unlockdown, there are still some safety measures advised, take note:

Masks are mandatory for all indoors occasions. They’re not mandatory outdoors, although recommended when social distancing is not possible.

There is not a curfew in place.

Quarantine will take place for illnesses, those under active observation, and those suspected of being infected with COVID-19.

Entry and Exit Requirements: PORTUGAL

Testing Requirements: All authorized travelers arriving from the United States, except for children under 12 years old must submit one of the following.

  • A EU Digital Vaccination Certificate
  • A negative SARSCoV-2 lab result of a nucleic acid amplification test (NAAT), for example a PCR test, performed in the last 72 hours or
  • A negative rapid antigen test (TRAg) performed within 48 hours of boarding

Current regulations allow U.S. citizens to travel directly from the United States to Portugal for non-essential travel (i.e. tourism) with proof of an accepted COVID-19 test.

 

Entry and Exit Requirements: UNITED STATES

Testing Requirements: All airline passengers to the United States, including U.S. citizens, ages two years and older must provide a negative COVID-19 viral test taken within the three days prior to travel.

Source https://pt.usembassy.gov/covid-19-information/