Nonstop flight route between Da Nang, Vietnam and Sidney, Montana, United States:

About this route:

A direct, nonstop flight between Đà Nẵng International Airport (DAD), Da Nang, Vietnam and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 7,599 miles (or 12,229 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 Đà Nẵng International Airport and Sidney-Richland Municipal 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 Đà Nẵng International Airport and Sidney-Richland Municipal 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 Đà Nẵng International Airport (DAD):

• The closest airport to Đà Nẵng International Airport (DAD) is Phu Bai International Airport (HUI), which is located 41 miles (66 kilometers) NW of DAD.
• After the war, the facility was used by the French Air Force during the French Indochina War.
• Both Tiger Airways and AirAsia terminated their respective SIN-DAD and KUL-DAD flight due to high airport fees.
• In addition to being known as "Đà Nẵng International Airport", another name for DAD is "Sân bay Quốc tế Đà Nẵng".
• The furthest airport from Đà Nẵng International Airport (DAD) is Rodríguez Ballón International Airport (AQP), which is nearly antipodal to Đà Nẵng International Airport (meaning Đà Nẵng International Airport is almost on the exact opposite side of the Earth from Rodríguez Ballón International Airport), and is located 12,412 miles (19,975 kilometers) away in Arequipa, Peru.
• In addition to its civil aviation, the runway is shared with the Vietnamese People's Air Force, although military activities are now extremely limited.
• Pacific Airlines inaugurated its daily flight between Da Nang and Hanoi in November 2005, giving domestic passengers an additional choice when flying between Da Nang and the capital, a route that had long been monopolized by Vietnam Airlines.
• Air Vietnam also used the facility from 1951 to 1975 for civilian domestic and international flights within Southeast Asia.
• A new 20,000m² terminal, costing USD $84 million with a capacity of 4 million passengers per year, opened to receive its first domestic flight on 15 December.
• Because of Đà Nẵng International Airport's relatively low elevation of 33 feet, planes can take off or land at Đà Nẵng 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.
• Đà Nẵng International Airport (DAD) has 2 runways.

Facts about Sidney-Richland Municipal Airport (SDY):

• The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
• Sidney-Richland Municipal Airport (SDY) has 2 runways.
• The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.