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

As of my knowledge cutoff in September 2021, Air Koryo, the national airline of North Korea, does not offer online check-in for its flights. Passengers are typically required to check in at the airport counter for their Air Koryo flights.

To ensure you have the most up-to-date information, I recommend visiting the Air Koryo website or contacting their customer service directly. They will be able to provide you with the specific check-in procedures for your flight and any available options for check-in. Please note that due to the unique circumstances surrounding travel to and from North Korea, it is important to stay informed and follow any specific guidelines or requirements set by Air Koryo and the authorities.