Americans will not require a passport to visit Puerto Rico but they will need to complete the
Travel Declaration Form and provide proof of vaccination or upload a negative COVID-19 PCR test (nasal or throat swab) result taken no more than 72 hours prior to arrival to the Puerto Rico Health Department's online portal in order to produce a QR code. Starting May 24, fully vaccinated travelers arriving on domestic flights
will not require a test. Keep in mind that the island is not accepting rapid tests as they can sometimes yield false results. Travelers awaiting test results or arriving without a test will have 48 hours to get tested and upload their results or risk a $300 fine. COVID-19 PCR testing is available seven days a week at San Juan's Luis Muñoz Marín International Airport for a cost of $110. Fortunately, since Puerto Rico is a U.S. territory, it's excluded from the CDC requirement to provide proof of a negative COVID-19 test result taken within three days of return travel to the mainland U.S.