Online check-in Chang'an Airlines - https://www.check-in.site

I'm sorry, but as an AI language model, I don't have real-time information or the ability to access specific airline systems. However, I can provide you with some general information on online check-in procedures that are commonly followed by many airlines.

To check in online for a Chang'an Airlines flight, you will typically need to visit their official website or use their mobile app, if available. Once you're on their online check-in page, you'll usually be prompted to enter your booking reference or e-ticket number along with your personal details.

The online check-in process usually involves the following steps:

1. Visit the Chang'an Airlines website or use their mobile app.

2. Look for the "Online Check-in" or "Manage Booking" section.

3. Enter your booking reference or e-ticket number, along with any other required personal details.

4. Select the flight for which you want to check in.

5. Choose your preferred seat, if available.

6. Review and confirm your flight details.

7. Obtain your boarding pass, either by printing it or saving it to your mobile device.

8. If you have any baggage to check, follow the instructions provided for baggage drop-off at the airport.

It's important to note that specific check-in procedures and timings may vary depending on the airline, airport, and flight. Therefore, it's always recommended to refer to Chang'an Airlines' official website or contact their customer service directly for the most accurate and up-to-date information regarding online check-in for your particular flight.