Online check-in Chalair Aviation - https://www.check-in.site

Chalair Aviation is a regional airline based in France. As an AI language model, I don't have real-time access to current information or the ability to perform online check-ins. However, I can provide you with some general information about online check-in processes.

1. Visit the airline's website: Start by visiting Chalair Aviation's official website. Look for the "Check-in" or "Manage Booking" section. The website should provide instructions on how to check in online.

2. Enter your booking details: You will typically be required to enter your booking reference or reservation number along with your last name or other personal details to access your booking.

3. Select your flight: Once you have accessed your booking, you should see a list of your flights. Choose the specific flight for which you want to check in.

4. Provide passenger details: Enter the required passenger information, such as your name, date of birth, passport or ID details, and any other information requested by the airline.

5. Select seats (if available): Depending on the airline's policy and availability, you may have the option to choose your seats during the online check-in process.

6. Confirm and obtain boarding pass: After completing the necessary steps, review the provided information and confirm your check-in. Once the process is complete, you should be able to download and print your boarding pass. Some airlines may also offer mobile boarding passes that can be saved on your smartphone.

If you encounter any issues or require specific information regarding Chalair Aviation's online check-in process, I recommend visiting their official website or contacting their customer support directly.