Southwest Airlines to help with flights for Afghan refugees

(CNN) -- Southwest Airlines will begin helping the Department of Defense by transporting Afghan refugees across the US.  

Starting Monday, Aug. 23, Southwest will operate four flights Monday, Tuesday and Wednesday, but it cannot talk about the originating airports or destinations. 

Southwest says the domestic charter flights are different than civil reserve air fleet flights ordered by the Biden administration Sunday morning, those flights are for Afghan refugees evacuated from Kabul who have been flown to US military bases in Europe and the Middle East.

The airline says it's proud to support the military's critical humanitarian airlift mission.