If a passenger has tested positive for COVID-19, and then tests negative, can that passenger travel?
- Individuals with known or suspected COVID-19 should self-isolate and NOT travel until they have met CDC’s criteria for discontinuing isolation.

What if I have had a COVID-19 vaccine or have tested positive for antibodies? Do I still need a negative COVID-19 test or documentation of recovery from COVID-19?
- Yes, at this time all air passengers traveling to the US, regardless of vaccination or antibody status, are required to provide a negative COVID-19 test result or documentation of recovery.

What happens if I test positive?
-People should self-isolate and delay their travel if symptoms develop or a pre-departure test result is positive until they have recovered from COVID-19. Airlines must refuse to board anyone who does not present a negative test result for COVID-19 or documentation of recovery.

https://www.cdc.gov/coronavirus/2019...travelers.html