Nonstop flight route between Tokyo, Honshū, Japan and Sidney, Montana, United States:

About this route:

A direct, nonstop flight between Tokyo International Airport (HND), Tokyo, Honshū, Japan and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 5,462 miles (or 8,790 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 Tokyo 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 Tokyo 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 Tokyo International Airport (HND):

• Haneda was mainly a military and civilian transportation base used by the U.S.
• Haneda was the primary international airport serving Tokyo until 1978.
• 30,000 annual international slots became available upon the opening of the international terminal in October 2010, and were allocated to government authorities in several countries for further allocation to airlines.
• In addition to being known as "Tokyo International Airport", other names for HND include "東京国際空港" and "Tōkyō Kokusai Kūkō".
• In June 2007, Haneda gained the right to host international flights that depart between 8:30 PM and 11:00 PM and arrive between 6 AM and 8:30 AM.
• The closest airport to Tokyo International Airport (HND) is Narita International Airport (NRT), which is located 37 miles (59 kilometers) ENE of HND.
• The Ministry of Land, Infrastructure and Transport is also planning a new road tunnel between the domestic and international terminals in order to shorten minimum connecting times between the terminals from the current 60–80 minutes.
• The furthest airport from Tokyo International Airport (HND) is Diomício Freitas/Forquilhinha Airport (CCM), which is located 11,722 miles (18,864 kilometers) away in Criciúma, Santa Catarina, Brazil.
• Because of Tokyo International Airport's relatively low elevation of 21 feet, planes can take off or land at Tokyo 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.
• Tokyo International Airport (HND) has 4 runways.
• Haneda Airport's new international terminal has received numerous complaints from passengers using it during night hours.

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.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
• 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.