Nonstop flight route between Paro, Bhutan and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Paro International Airport (PBH), Paro, Bhutan and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 7,856 miles (or 12,643 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Paro International Airport and St. Louis Regional Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Paro International Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Paro International Airport (PBH):

• Paro International Airport (PBH) currently has only 1 runway.
• With surrounding peaks as high as 18,000 ft it is considered one of the world's most challenging airports, and as of October 2009, only eight pilots in the world are certified to land at the airport.
• The furthest airport from Paro International Airport (PBH) is Mataveri International Airport (IPC), which is located 11,281 miles (18,155 kilometers) away in Easter Island, Chile.
• Paro Airport is the only international airport of Bhutan.
• In 2002, the airport handled 37,200 passengers and 91,000 tonnes of cargo.
• Because of Paro International Airport's high elevation of 7,300 feet, planes must typically fly at a faster airspeed in order to takeoff or land at PBH. Combined with a high temperature, this could make PBH a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The closest airport to Paro International Airport (PBH) is Cooch Behar Airport (COH), which is located 65 miles (104 kilometers) SSE of PBH.

Facts about St. Louis Regional Airport (ALN):

• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• St. Louis Regional Airport (ALN) has 2 runways.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• West Star Aviation is the largest fixed base operations company at the airport.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.