The 12 planes, famed for their tank-destroying capabilities, arrived over the weekend and have already been scheduled to fly missions in support of the US-led coalition fighting Islamic State jihadists in Iraq and Syria, the official told AFP.
Speaking on condition of anonymity, he said the move had "added capability" to the coalition's efforts against IS.
Known by troops on the ground as "Warthogs," A-10 planes are heavily strengthened and designed to withstand direct hits from armor-piercing rounds.
The planes typically fly lower and slower than F-16s, which also puts them more in harm's way.
"There's more significant risk than other aircraft due to the flight path they typically fly," the official said.
It wasn't immediately clear if the US-led coalition has already used A-10s during its bombing campaign of IS jihadists, which has been going on for more than a year.