PASSENGERS boarding Southwest Airlines flights will soon notice a new feature that is being rolled out to its planes.

The airline confirmed on Friday that a new security device will be implemented on its new Boeing 737s, blocking travelers from part of the plane.

Southwest has implemented a foldaway secondary cockpit barrier for the safety of the pilot and customers on board.

The new barrier had its debut on September 5 and will be rolled out across 26 planes by the end of the year.

"This requirement actually goes all the way back to Sept. 11. Following that event, it was always looking for a path to make the flight deck more secure," Southwest Executive Vice President of Operations Justin Jones told USA TODAY .

"It’s just another layer of protection there to make sure no passenge

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