Nonstop flight route between Don Muang, Bangkok, Thailand and Sidney, Montana, United States:

About this route:

A direct, nonstop flight between Don Mueang International Airport (DMK), Don Muang, Bangkok, Thailand and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 7,913 miles (or 12,735 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 Don Mueang 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 Don Mueang 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 Don Mueang International Airport (DMK):

• Currently Terminal 1 is capable of handling 18.5 million passengers annually.
• Because of Don Mueang International Airport's relatively low elevation of 9 feet, planes can take off or land at Don Mueang 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.
• On 16 March 2012, Government of Thailand, Yingluck ordered all low-cost, chartered and non-connecting flights to relocate to Don Mueang International Airport, ending the single-airport policy.
• An RTAF golf course is located between the two runways.
• In addition to being known as "Don Mueang International Airport", another name for DMK is "ท่าอากาศยานดอนเมือง".
• Don Mueang International Airport (DMK) has 2 runways.
• Before the opening of Suvarnabhumi, the airport used the IATA airport code BKK and the name was spelled Don Muang.
• On 30 January 2007, the Ministry of Transport recommended temporarily reopening Don Mueang while touch up work process on some taxiways at Suvarnabhumi proceeds.
• Don Mueang was an important hub of Asia and the hub of Thai Airways International prior to its closure.
• The closest airport to Don Mueang International Airport (DMK) is Suvarnabhumi Airport (BKK), which is located only 18 miles (29 kilometers) SSE of DMK.
• The furthest airport from Don Mueang International Airport (DMK) is Jorge Chávez International Airport (LIM), which is nearly antipodal to Don Mueang International Airport (meaning Don Mueang International Airport is almost on the exact opposite side of the Earth from Jorge Chávez International Airport), and is located 12,235 miles (19,691 kilometers) away in Callao (near Lima), Peru.

Facts about Sidney-Richland Municipal Airport (SDY):

• Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
• Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
• 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.
• As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
• 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.