Nonstop flight route between Hayden, Colorado, United States and Dum Dum (near Kolkata), India:

About this route:

A direct, nonstop flight between Yampa Valley Airport (HDN), Hayden, Colorado, United States and Netaji Subhas Chandra Bose International Airport (CCU), Dum Dum (near Kolkata), India would travel a Great Circle distance of 7,960 miles (or 12,810 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 Yampa Valley Airport and Netaji Subhas Chandra Bose International 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 Yampa Valley Airport and Netaji Subhas Chandra Bose International 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 Yampa Valley Airport (HDN):

• All seasonal flights begin in December and end in April.
• The furthest airport from Yampa Valley Airport (HDN) is Sir Gaëtan Duval Airport (RRG), which is located 10,901 miles (17,543 kilometers) away in Rodrigues Island, Mauritius.
• Because of Yampa Valley Airport's high elevation of 6,606 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDN. Combined with a high temperature, this could make HDN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The closest airport to Yampa Valley Airport (HDN) is Craig–Moffat Airport (CIG), which is located only 16 miles (26 kilometers) W of HDN.
• Yampa Valley Airport (HDN) currently has only 1 runway.
• There is no Air Traffic Control Tower at the airport.
• In addition to being known as "Yampa Valley Airport", another name for HDN is "Yampa Valley Regional Airport".

Facts about Netaji Subhas Chandra Bose International Airport (CCU):

• Due to the introduction of longer haul aircraft and the poor political climate of Calcutta during the 1960s, several airlines discontinued their service to the airport.
• Netaji Subhas Chandra Bose International Airport (CCU) has 2 runways.
• The construction of the new terminal, as well as runway expansion marked the end of Phase I in the project.
• The closest airport to Netaji Subhas Chandra Bose International Airport (CCU) is Jessore Airport (JSR), which is located 58 miles (94 kilometers) NE of CCU.
• The furthest airport from Netaji Subhas Chandra Bose International Airport (CCU) is Mataveri International Airport (IPC), which is located 11,276 miles (18,147 kilometers) away in Easter Island, Chile.
• Because of Netaji Subhas Chandra Bose International Airport's relatively low elevation of 16 feet, planes can take off or land at Netaji Subhas Chandra Bose International 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 airport began as an open ground next to the Royal Artillery Armoury in Dum Dum.
• In addition to being known as "Netaji Subhas Chandra Bose International Airport", another name for CCU is "নেতাজি সুভাষচন্দ্র বসু আন্তর্জাতিক বিমানবন্দর".
• Work included an expansion of runway 01L/19R, rapid-exit taxiways and parking bays.
• The modernisation plan included some improvements of the airport's existing terminals, including the addition of extra ticketing counters, check-in kiosks and cafes to the domestic terminal in 2009.
• In September 2012, the Airports Authority of India upgraded the airport's cargo-handling capacity, enabling it to cater for the demand until 2015–16.
• Between the 1940s and 1960s, the airport was served by several major airlines including Aeroflot,Air France,Alitalia,Cathay Pacific,Japan Airlines,Philippine Airlines,KLM, Pan Am,Lufthansa,Swissair and SAS.