Passenger Zhang Lian, set to board a Cathay Pacific flight from Shanghai to Hong Kong, uses just a QR code to complete security and check-in procedures in approximately 10 minutes at Shanghai Pudong International Airport, Oct. 29, 2018. The airport is the first Chinese mainland airport to adopt paperless check-in for outbound passengers. (Photo: China News Service/Yin Liqin)
Passenger Zhang Lian, set to board a Cathay Pacific flight from Shanghai to Hong Kong, uses just a QR code to complete security and check-in procedures in approximately 10 minutes at Shanghai Pudong International Airport, Oct. 29, 2018. The airport is the first Chinese mainland airport to adopt paperless check-in for outbound passengers. (Photo: China News Service/Yin Liqin)
Passenger Zhang Lian, set to board a Cathay Pacific flight from Shanghai to Hong Kong, uses just a QR code to complete security and check-in procedures in approximately 10 minutes at Shanghai Pudong International Airport, Oct. 29, 2018. The airport is the first Chinese mainland airport to adopt paperless check-in for outbound passengers. (Photo: China News Service/Yin Liqin)
Passenger Zhang Lian, set to board a Cathay Pacific flight from Shanghai to Hong Kong, uses just a QR code to complete security and check-in procedures in approximately 10 minutes at Shanghai Pudong International Airport, Oct. 29, 2018. The airport is the first Chinese mainland airport to adopt paperless check-in for outbound passengers. (Photo: China News Service/Yin Liqin)
Passenger Zhang Lian, set to board a Cathay Pacific flight from Shanghai to Hong Kong, uses just a QR code to complete security and check-in procedures in approximately 10 minutes at Shanghai Pudong International Airport, Oct. 29, 2018. The airport is the first Chinese mainland airport to adopt paperless check-in for outbound passengers. (Photo: China News Service/Yin Liqin)