"The CDC order from December 2, 2021, requiring persons aged two and above to show a negative COVID-19 test result or documentation of recovery from COVID-19 before boarding a flight to the United States, is rescinded, effective June 12, 2022, at 12:01AM ET."
This applies across the board for US entry, vaxx or non vaxxed. FULL STOP. This applies to US passport holders. If not a US passport holder, you need to look up entry requirements.