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):

• Don Mueang International Airport (DMK) has 2 runways.
• The closest airport to Don Mueang International Airport (DMK) is Suvarnabhumi Airport (BKK), which is located only 18 miles (29 kilometers) SSE of DMK.
• In addition to being known as "Don Mueang International Airport", another name for DMK is "ท่าอากาศยานดอนเมือง".
• 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.
• The head office of R Airlines is in Rooms 4326 and 4328 on the fourth floor of the International Terminal of Don Mueang International Airport.
• In 1933, the airfield was the scene of heavy fighting between royalists and government forces during the Boworadet Rebellion.
• Don Mueang is a joint-use facility with the Royal Thai Air Force's Don Muang Royal Thai Air Force Base, and is the home of the RTAF 1st Air Division, which consists primarily of non-combat aircraft.
• Because of the 2011 Thailand floods that affected Bangkok and the rest of Thailand, the airport was closed as flood waters flowed on to the runways and affected the lighting.
• 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 (SDY) has 2 runways.
• 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.
• 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.
• 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.