Air Koryo: Skytrax said that Air Koryo was the only airline out of 681 to consistently retain a 1-star rating over a four-year period.
Daallo Airlines: The liner is now prohibited from flying in EU airspace, and this situation doesn't seem to be about to change.
Ariana Afghan Airlines: Although it's fair to say that three of the airline's 13 most significant incidents involved parked planes being struck down
Png Air: In order to slow down the plane's landing speed, the pilots inadvertently turned the propeller engine into reverse, which caused the aircraft to catch fire and crash in 2011
Nok Air: The Australian flight ranking website only gave Nok Air 2 stars, as a result, it continues to struggle to recruit competent pilots.
Blue Wing: After three catastrophic air crashes that resulted in a total of 25 fatalities, the designation was withdrawn only three years later
Yeti Airlines: Here, travelers are in a difficult situation. In the previous three decades, there have been 27 fatal crashes in the nation.
Turkish Airways: Turkish Air, the nation's flag carrier, has seen 10 catastrophic in-flight mishaps or crashes in less than two decades.
Aeroflot: Aeroflot is plagued by more fatalities than any other airline, despite the fact that these numbers are the result of years spent flying nonstop across the USSR as the sole airline.