Yes, you can check-in online with China Southern Airlines. The airline offers a convenient online check-in service for most domestic and international flights. Online check-in opens 24 hours before departure and closes 1 hour before takeoff. You can access this service through the China Southern website or the official mobile app. To begin, enter your booking reference or ticket number along with your name. Once checked in, you can select your seat, confirm flight details, and receive a digital boarding pass that can be downloaded or sent to your email or phone. Passengers with carry-on luggage only can go straight to the security check upon arrival at the airport, bypassing the check-in counter. Those with checked baggage should still check in online and then use the baggage drop counters, which are clearly marked and open with regular check-in hours. Airport check-in counters typically open 2.5 to 3 hours before international flights and 2 hours before domestic flights, and close 40 to 60 minutes before departure, depending on the airport. Using online check-in can save time, especially during busy travel periods or in large airports like Guangzhou Baiyun International Airport, the main hub for China Southern Airlines. The system is user-friendly, supporting both Chinese and English, and works for most routes unless special document verification is needed. Online check-in is not available for passengers who require special assistance, such as those traveling with infants, unaccompanied minors, or passengers with pets. These travelers must check in at the airport. Also, some codeshare flights may not support online check-in through China Southern and will instead follow the check-in rules of the operating airline. When using online check-in, make sure to arrive at the airport early enough to clear security and immigration. Boarding gates usually close 15 to 30 minutes before departure, and passengers are required to be at the gate on time, even if they have checked in online. For international flights, it’s recommended to arrive at the airport at least 2.5 to 3 hours before departure, especially if you have baggage to check or documents to verify. Business Class and First Class passengers have access to dedicated counters and priority services, even when using online check-in. Overall, China Southern’s online check-in system is designed to reduce wait times and make the boarding process more efficient. It supports a smooth experience for tech-savvy travelers who prefer handling their flight preparations in advance. In summary, China Southern allows online check-in from 24 hours to 1 hour before your flight, and it is available for most domestic and international routes. Using this feature saves time, avoids long lines, and helps ensure a relaxed start to your journey. Always check your airport's specific guidelines and arrive with enough time for a smooth departure when flying with China Southern Airlines.