https://www.cdc.gov/coronavirus/2019-ncov/travelers/international-travel-during-covid19.html
- Before you arrive in the United States:
- All air passengers coming to the United States, including U.S. citizens and fully vaccinated people, are required to have a negative COVID-19 viral test result no more than 3 days before travel or documentation of recovery from COVID-19 in the past 3 months before they board a flight to the United States.