Bert Mooney Airport, Butte Montana

Sure it has a lovely new $10.5 million dollar terminal, but this picturesque airport between Yellowstone and Glacier National Parks still ranks as a dangerous one thanks to a lack of control tower and the need for pilots to navigate numerous obstructions while landing.
Aspen/Pitkin County Airport, Colorado, USA

Any airport that requires special pilot training easily makes a list of the most dangerous airports in the world. Aspen’s airport, according to the Telegraph, fits the bill thanks to its steep approach and mountains surrounding the runway which force those specially trained pilots to land and take off in opposite directions while using the single runway.
Telluride Regional Airport, Colorado

Not surprisingly, another Colorado Rocky Mountain airport is ranked as one of the most dangerous. Telluride’s Regional Airport sits over 9,000 feet above sea level, making it the highest commercial airport in North America. There are huge cliffs at both ends of the airport’s single runway, and strong mountain winds in the cold of winter, all serving to make landing an airplane in Telluride a dangerous proposition for even experienced pilots.