What's the difference between check-in and pre-selected seats?

General airlines offer different services according to different fares. For example, Air China can pre-select seats for all air tickets with prices above the departure price of business friends, while air tickets with large discounts cannot pre-select seats and can only be selected when check-in is open. However, if you also buy economy class, the pre-selected seats for business friends are the same as those after value-added discount check-in, but there are fewer seats after check-in, because the pre-selected seats are generally opened earlier.

Online check-in, referred to as "online check-in" service, is a convenient and fast check-in method. If you don't need to check your luggage, you can book your seat in advance through online check-in, print out your boarding pass, and board the plane directly through security check, so you don't have to queue up at the airport service counter to get your boarding pass, which can save time.

Extended data

1, airport self-service check-in, means that passengers can verify their travel documents, select seats and print boarding passes at the airport with the help of the special check-in machine CUSS, and if they need to hand in their luggage, they can check in at the special counter.

2. Online check-in: refers to the working mode that passengers log in to the self-service check-in interface of the airline departure system through the Internet, verify their identity documents, select and confirm seats, and print A4 paper boarding passes. If you need to hand in your luggage, passengers should complete the baggage delivery at the special counter before boarding the plane, and the A4 paper boarding pass printed by themselves will pass the security check.

3. Mobile phone check-in: refers to passengers using mobile phones to log in to the self-service check-in interface of the airline departure system, verify their identity documents, and choose their own seats. The airline sends the electronic boarding pass of QR code to the passenger's mobile phone by SMS. After arriving at the airport, passengers can check their luggage, print their boarding pass or scan the QR code directly to complete the security check.

4. SMS check-in: It means that passengers go through check-in procedures by sending and receiving SMS. The first phase of SMS check-in service is only applicable to single adult passengers who handle non-transit and non-code domestic flights of China Southern Airlines.

References:

Baidu Encyclopedia: Online Sign-in