Online check-in Midex Airlines - https://www.check-in.site

I'm sorry, but as of my last knowledge update in September 2021, I couldn't find any information about an airline called "Midex Airlines." It's possible that this airline was established or changed its name after that time, or it may be a small or regional airline that is not widely known. It's always a good idea to check the latest information from reliable sources or official airline websites for the most up-to-date details about airlines.