Starting January 26th, 2021 all air passenger entering to the United States will be required a negative COVID-19 test. The order was signed by the CDC Director this week.
Press release by CDC
"The Centers for Disease Control and Prevention is expanding the requirement for a negative COVID-19 test to all air passengers entering the United States. Testing before and after travel is a critical layer to slow the introduction and spread of COVID-19. This strategy is consistent with the current phase of the pandemic and more efficiently protects the health of Americans.
Variants of the SARS-CoV-2 virus continue to emerge in countries around the world, and there is evidence of increased transmissibility of some of these variants. With the US already in surge status, the testing requirement for air passengers will help slow the spread of the virus as we work to vaccinate the American public.
Before departure to the United States, a required test, combined with the CDC recommendations to get tested again 3-5 days after arrival and stay home for 7 days post-travel, will help slow the spread of COVID-19 within US communities from travel-related infections. Pre-departure testing with results known and acted upon before travel begins will help identify infected travelers before they board airplanes."
You can read the full information in this link:
THE US-CDC Expands Negative COVID-19 Test Requirement to All Air Passengers Entering USA
