Peak Performance

Question: Where is an airport's thrilling approach only permitted by a handful of elite, certified pilots?

Answer: Bhutan's Paro International Airport (PBH)

Surrounded by 18,000-foot peaks and situated in a narrow valley deep within the heart of the Himalayas, Paro International Airport is widely cited as one of the world's most dangerous. Offering a thrilling yet perilous gateway to the Kingdom of Bhutan, this airport tests the mettle of even the most seasoned aviators with its razor-thin margins for error, extreme topography, and unpredictable weather conditions.

Navigating to Paro International Airport requires "threading the needle" through a long, winding valley, with the runway only becoming visible moments before landing. This late sighting of the landing strip leaves little room for error, requiring split-second decision-making and precise control. The runway itself—at 7,431 feet long—is relatively short for commercial aircraft, further complicating the landing procedure.

As if the challenging terrain weren't daunting enough, the Paro Valley's weather adds another layer of peril to pilots' tasks: The surrounding mountains create unpredictable wind patterns—including sudden gusts and downdrafts—which can affect an aircraft's stability during the critical phases of approach and landing. Pilots must be adept at reading these environmental factors and adjusting their approach accordingly, sometimes making last-minute decisions to abort landings if conditions become unsafe.

Due to these many variables, Paro International Airport maintains strict regulations on who can fly into its challenging terrain. Only a handful of pilots in the world—24, to be precise—are certified to land at PBH, and this exclusive group undergoes rigorous training and assessment before being granted this privilege. The certification process is both lengthy and demanding, requiring pilots to demonstrate exceptional skills in manual flying, spatial awareness, and decision-making under pressure.

The certification begins with intensive classroom training, where pilots study the unique topography of the Paro Valley, local weather patterns, and the specific challenges of the approach. They then move on to simulator training, where they practice the approach and landing countless times under various weather conditions and scenarios. Only after mastering the simulated environment do pilots progress to actual flights, initially as observers and then under close supervision.

One of the key reasons for the stringent certification process is the manual nature of the approach. Unlike many modern airports where instrument landing systems guide aircraft to the runway, the approach to Paro is entirely visual. Pilots must rely on their own eyes and judgment to navigate the treacherous terrain, which is why landings are only permitted during daylight hours and in good visibility conditions.

However, despite its reputation, there's no need to worry about flying into Bhutan—Paro International Airport boasts an excellent safety record, with no major incidents reported since its opening in 1983. Indeed, the journey is usually more awe-inspiring than anxiety-inducing for passengers. As the aircraft winds its way through the valley, travelers are treated to breathtaking views of the Himalayan landscape—including snow-capped peaks and ancient monasteries perched on cliffsides.

There’s no denying that the final approach adds a dash of excitement to the experience, though. Featuring a dramatic 45-degree turn to align with the runway and a sudden reveal of the landing strip, this last leg of the journey is often described as both thrilling and exhilarating, offering a unique aviation experience that passengers are unlikely to forget.

8 Fun Facts About Paro International Airport:

• On clear days, passengers flying into Paro may catch a glimpse of Mount Everest, the world's highest peak, located about 200 miles to the east.


• Paro International Airport sits at an elevation of 7,364 feet above sea level, making it one of the highest international airports in the world.


• The airport's runway has a 2% gradient, which helps aircraft slow down during landing and accelerate during takeoff.


• Only two airlines currently operate scheduled flights to Paro: Bhutan Airlines and Druk Air (the national carrier of Bhutan).


• The airport can handle aircraft up to the size of an Airbus A319, a narrow-body airliner smaller than the commonly used Boeing 737 or Airbus A320. This mid-size jet—seating about 124-156 passengers—is currently the largest plane serving the airport.


• Paro International Airport features a traditional Bhutanese-style terminal building, complete with hand-painted Buddhist murals.


• The airport serves as a base for Bhutan's Royal Bhutan Helicopter Services, which conduct search and rescue operations in the mountainous region.


• The airport's unique approach has made it a popular subject for aviation enthusiasts and has been featured in numerous documentaries and TV shows about extreme airports.

Fly into Bhutan’s Paro International Airport on the Bhutan: The Last Shangri-La pre-trip extension to our Heart of India adventure.