Flight 4815 left on July 6, a release from the Rensselaer County Health Department said.
The passengers were not symptomatic on the flight, but began showing symptoms on July 7.
“We have been made aware of three customers who tested positive for Covid-19 and recently traveled on Endeavor from Atlanta to Albany. We are following the guidance of local healthcare officials and the Centers for Disease Control and Prevention. The health and safety of our customers and crews is our top priority,” Delta spokesman Anthony Black told CNN in an email.
Delta is in contact with regional CDC officials and has provided a manifest of the flight, Black said. CNN has reached out to the CDC for comment.
Delta is evaluating the return of spirits, soft drinks and a larger selection of snacks and meals.