Nonstop flight route between Sidney, Montana, United States and Hilo, Hawaii, United States:

About this route:

A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Hilo International Airport (ITO), Hilo, Hawaii, United States would travel a Great Circle distance of 3,420 miles (or 5,504 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 Sidney-Richland Municipal Airport and Hilo 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 Sidney-Richland Municipal Airport and Hilo 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 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.
• 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.
• 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.
• 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.

Facts about Hilo International Airport (ITO):

• During the late 1950s Territorial leaders anticipated a boom in tourism, prompting plans for a second airport capable of accommodating large jet aircraft.
• The primary reason for Hilo International Airport's relatively stagnant passenger count is the lack of tourism within the airport's service area, which includes the districts of Hilo and Puna, as well as portions of the districts of Hāmākua and Kaʻū, relative to the Kona district and Kohala district and the islands of Kauaʻi and Maui.
• Hilo International Airport has two runways.
• The closest airport to Hilo International Airport (ITO) is Pōhakuloa Training Area (BSF), which is located 44 miles (71 kilometers) W of ITO.
• Hilo International Airport handled 1,279,342 passengers last year.
• Hilo International Airport (ITO) has 2 runways.
• Improvements to Hilo's airfield were minimal during its first decade.
• Because of Hilo International Airport's relatively low elevation of 38 feet, planes can take off or land at Hilo 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 furthest airport from Hilo International Airport (ITO) is Maun Airport (MUB), which is nearly antipodal to Hilo International Airport (meaning Hilo International Airport is almost on the exact opposite side of the Earth from Maun Airport), and is located 12,336 miles (19,854 kilometers) away in Maun, Botswana.