On December 1, 2016, his beatification received approval from Pope Francis after the pope confirmed that Rother had been killed "in odium fidei" (in hatred of the faith). On March 13, 2017, the date for his beatification was announced on the archdiocesan website. Rother was beatified on September 23, 2017, at the Cox Convention Center, with Cardinal Angelo Amato presiding over the beatification — as the Prefect of the Congregation of the Causes of the Saints on the pope's behalf at a Mass attended by 20,000 people. Among the bishops who assisted Amato were the Most Rev. Paul S. Coakley, Archbishop of the Archdiocese of Oklahoma City and Oklahoma City Archbishop Emeritus Eusebius J. Beltran, who began Rother’s cause for canonization in 2007.