Online check-in Adria Airways - https://www.check-in.site

Adria Airways, like many airlines, typically offers online check-in for flights. This process can usually be completed on the airline's official website or mobile application. However, as of my knowledge cutoff in September 2021, I can't provide the exact link or steps for this, as details can change over time.

Here are the general steps for online check-in which are common for most airlines:

1. Visit the official website of the airline (in this case, Adria Airways).

2. Look for the option labelled "Online Check-In", "Web Check-In", or something similar. This is often found at the top of the page, or within the "Travel Information" or "Travel Services" sections.

3. Click on this option, and you'll be prompted to enter information such as your reservation number or flight number.

4. Follow the instructions on screen to complete the check-in process. You might be able to choose your seat, and in some cases, you can also print your boarding pass or have it sent to you via email.

For specific details or links to Adria Airways online check-in, please visit their official website or contact their customer service directly. Please note that not all flights or tickets may be eligible for online check-in, and the availability of online check-in may vary depending on the departure airport and destination.