 MEXICO CITY, Mexico, Aug. 25, 2021 PRNewswire -- Controladora Vuela Compañía de Aviación, S.A.B. de C.V. Volaris or the Company NYSE: VLRS and BMV: VOLAR, an ultra-low-cost airline serving Mexico, the United States of America, Central America and before long South America, informs that the process of its subsidiary, Vuela El Salvador, S.A. 