How does the pre-selection of 100 seats of China Southern Airlines affect the boarding opportunities?

In order to improve passengers' flight experience, promote paperless boarding and advocate green travel, China Southern Airlines has implemented 100% pre-selected seating service on domestic flights. After successful ticket purchase, passengers can pre-select seats through the official electronic channels of China Southern Airlines. The official electronic channels of China Southern Airlines include official website and mobile app. Before passing the security check-in, you can still re-select your seat or cancel check-in through the above official electronic channels. When handling seat pre-selection, you can check automatic check-in, and China Southern will automatically check in for passengers online before the flight takes off. For passengers who do not take the initiative to choose seats four hours before the flight takes off, China Southern will automatically pre-select seats for passengers and go through online check-in procedures.

At airports that support electronic boarding passes, passengers can obtain electronic boarding passes through the above-mentioned official electronic channels of China Southern Airlines before the flight takes off, and board the plane directly through the security check with the electronic boarding passes without queuing to print paper boarding passes. However, for first-time passengers, there are still disadvantages in using it. At present, China Southern Airlines supports electronic boarding passes at 39 domestic airports such as Guangzhou and Beijing.