The couple identified as 20-year-old Jaelyn Delshaun Young and 22-year-old Muhammad Oda Dakhlalla were arrested from Golden Triangle Regional Airport in Columbus, Mississippi, over the weekend, reported CNN.
They're accused of conspiring and attempting to provide material support and resources to ISIS.
Last week, they allegedly bought tickets to fly from Columbus, Mississippi, to Istanbul. Authorities arrested them Saturday at the Mississippi airport, and both "confessed to attempting to travel to Turkey to join ISIS," according to the complaint.
A 20-year-old New Jersey man was taken into custody Monday on a similar accusation.
ISIS known for their brutality and executions have captured large parts of Syria and Iraq to establish their caliphate. They follow an extreme form of Islam that rationalizes mass killings, kidnappings and other atrocities, like its twisted justification for selling off and having sex with girls and women who are "nonbelievers."