On December 1, 2016, Pope Francis issued a decree confirming that Rother had been killed "in odium fidei" (in hatred of the faith) which would allow him to be beatified. Rother was beatified on September 23, 2017, during a Mass at the Cox Convention Center in Oklahoma City. He is the first US-born priest and martyr to be beatified by the Catholic Church and the second person to be beatified on US soil following the 2014 beatification of New Jersey-born nun Miriam Teresa Demjanovich.