Nonstop flight route between Salmon, Idaho, United States and Hilo, Hawaii, United States:

About this route:

A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Hilo International Airport (ITO), Hilo, Hawaii, United States would travel a Great Circle distance of 2,926 miles (or 4,708 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 Lemhi County 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 Lemhi County 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 Lemhi County Airport (SMN):

• The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of SMN.
• Because of Lemhi County Airport's high elevation of 4,043 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SMN. Combined with a high temperature, this could make SMN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Lemhi County Airport (SMN) is Tôlanaro Airport (FTU), which is located 10,686 miles (17,197 kilometers) away in Tôlanaro, Madagascar.
• Lemhi County Airport (SMN) currently has only 1 runway.

Facts about Hilo International Airport (ITO):

• 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.
• Although designed as the second gateway into and out of Hawaiʻi, for many years Hilo had been Hawaiʻi's only major airport lacking non-stop flights to North America.
• Sixteen months after the dedication, scheduled inter-island service began on November 11, 1929 by Inter-Island Airways, the forerunner of Hawaiian Airlines.
• The closest airport to Hilo International Airport (ITO) is Pōhakuloa Training Area (BSF), which is located 44 miles (71 kilometers) W of ITO.
• During the late 1950s Territorial leaders anticipated a boom in tourism, prompting plans for a second airport capable of accommodating large jet aircraft.
• On April 28, 1988, an Aloha Airlines Boeing 737 operating Flight 243 from General Lyman Field to Honolulu International Airport carrying 89 passengers and 5 crew members experienced rapid decompression when an 18 feet section of the fuselage roof and sides were torn from the airplane.
• At the same time, the state's other major airports added overseas service.
• Hilo International Airport (ITO) has 2 runways.
• 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.
• Hilo International Airport handled 1,279,342 passengers last year.