All citizen tourists from the United States may enter Costa Rica on flights departing from the United States.

As of November 1, U.S. citizen tourists for all 50 states and Washington D.C. may enter Costa Rica on flights departing from the United States.  U.S. citizen tourists from these states wishing to enter Costa Rica must complete a digital epidemiological health pass, obtain a negative PCR-RT coronavirus test taken within 72 hours of their departure from the United States, and purchase travel insurance that covers accommodation in case of quarantine and medical expenses due to COVID-19.  U.S. tourist must also demonstrate, via a valid driver’s license or State ID card, that they live in one of the authorized states.  No forms of documentation establishing residency in these authorized states other than a valid driver’s license or State ID card will be accepted at this time.  Accompanying minors are not required to have a driver’s license or State ID card. The Costa Rica Tourism Board (ICT) has an English-language website detailing these entry requirements: https://www.visitcostarica.com/en/costa-rica/planning-your-trip/entry-requirements

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