On January 12-13, CAAC announced circuit breaker measures for several flights, which were China Southern Airlines’ Flight CZ344 (Melbourne - Guangzhou), China Eastern Airlines’ Flight MU220 (Frankfurt - Shanghai), China Southern Airlines’ Flight CZ348 (Paris - Guangzhou) and Flight CZ312 (Toronto - Guangzhou), China Eastern Airlines’ Flight MU570 (Paris - Shanghai), American Airlines’ Flight AA127 (Dallas - Shanghai), Lufthansa’s Flight LH728 (Frankfurt - Shanghai), Air Canada’s Flight AC025 (Vancouver - Shanghai), Delta Airlines’ Flight DL283 (Detroit - Shanghai), Egypt Air’s Flight MS953 (Cairo - Hangzhou) and Neos’ Air Flight NO946 (Milan - Tianjin).