According to the provided information, Air Koryo is the world's only 1-star rated airline.
Based on the reference, Air Koryo operates flights primarily flying in or out of North Korea. The distinction of being the world's only airline with a 1-star rating, as mentioned in the source from Tripadvisor, has significant operational consequences. This low rating prevents Air Koryo from operating flights into the airspace of many regions globally, specifically citing the inability to fly into all of Europe and North America.
The airline's status is highlighted as:
- Airline Name: Air Koryo
- Rating: 1 Star
- Location/Primary Operation: North Korea
- Impact of Rating: Restricted access to global airspace (e.g., prohibited from flying into Europe and North America).
