Nonstop flight route between Hilo, Hawaii, United States and Atwater, California, United States:

About this route:

A direct, nonstop flight between Hilo International Airport (ITO), Hilo, Hawaii, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 2,402 miles (or 3,866 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 relatively short distance between Hilo International Airport and Castle Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Hilo International Airport (ITO):

• Work began on an interim overseas terminal at General Lyman Field in November 1968.
• Hilo International Airport (ITO) has 2 runways.
• Hilo International Airport handled 1,279,342 passengers last year.
• Sixteen months after the dedication, scheduled inter-island service began on November 11, 1929 by Inter-Island Airways, the forerunner of Hawaiian Airlines.
• 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.
• The closest airport to Hilo International Airport (ITO) is Pōhakuloa Training Area (BSF), which is located 44 miles (71 kilometers) W of ITO.
• 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.
• Improvements to Hilo's airfield were minimal during its first decade.
• The passenger terminal complex, including commuter facilities, is at the southern edge of Hilo International Airport and is served by an access roadway from Hawaii Belt Road at Kekūanaōʻa Avenue.
• Efforts finally had some success on April 28, 2006, when ATA Airlines re-established daily non-stop service between Hilo and Oakland International Airport in California aboard its Boeing 737-800 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.

Facts about Castle Airport (MER):

• In 2004, recommendations were made to relocate the 129th Rescue Wing of the California Air National Guard and its associated HC-130, MC-130 and HH-60 aircraft from Moffett Federal Airfield to the former Castle Air Force Base, now Castle Airport.
• It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
• It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
• The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
• Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle 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.
• Castle Airport (MER) currently has only 1 runway.
• The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
• The airport is located at the former Castle Air Force Base which closed in 1995.