The flag of Magallanes y la Antártica Region was officially adopted on the 5th of February 1997 by the regional government in conjunction with the Regional Coat of Arms.
Arica y Parinacota Region flag is a white background with the coat of arms of the Arica y Parinacota region in the centre and the region's name under the coat of arms.
The Ñuble Region was established on June 9, 2018, after being separated from the Biobio Region. The Flag of Ñuble Region has a white background with the Coat of Arms in the centre.