Online check-in Air Excursions - https://www.check-in.site

I apologize, but as of my knowledge cutoff in September 2021, I couldn't find any specific information about an airline called "Air Excursions." It's possible that the airline may be a small regional or charter carrier that operates in a specific region or offers limited services.

To check-in online for Air Excursions flights, I recommend visiting their official website or contacting their customer service directly. They will be able to provide you with the specific check-in procedures and options available for your flight.