Nonstop flight route between Grand Forks, North Dakota, United States and Yamagata, Japan:
Departure Airport:
Arrival Airport:
Distance from RDR to SYO:
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- About this route
- RDR Airport Information
- SYO Airport Information
- Facts about RDR
- Facts about SYO
- Map of Nearest Airports to RDR
- List of Nearest Airports to RDR
- Map of Furthest Airports from RDR
- List of Furthest Airports from RDR
- Map of Nearest Airports to SYO
- List of Nearest Airports to SYO
- Map of Furthest Airports from SYO
- List of Furthest Airports from SYO
About this route:
A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Shonai Airport (SYO), Yamagata, Japan would travel a Great Circle distance of 5,491 miles (or 8,837 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 Grand Forks Air Force Base and Shonai 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 Grand Forks Air Force Base and Shonai Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | RDR / KRDR |
| Airport Names: |
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| Location: | Grand Forks, North Dakota, United States |
| GPS Coordinates: | 47°57'39"N by 97°24'3"W |
| View all routes: | Routes from RDR |
| More Information: | RDR Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SYO / RJSY |
| Airport Names: |
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| Location: | Yamagata, Japan |
| GPS Coordinates: | 38°48'43"N by 139°47'13"E |
| Area Served: | Sakata, Yamagata |
| Airport Type: | Public |
| Elevation: | 72 feet (22 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SYO |
| More Information: | SYO Maps & Info |
Facts about Grand Forks Air Force Base (RDR):
- On 26 May 1972, President Nixon and Soviet general secretary Leonid Brezhnev signed the ABM Treaty, which limited each nation to one site to protect strategic forces and one site to protect the "National Command Authority." With work about 85 percent complete at Grand Forks, the United States chose to finish construction at the North Dakota site.
- The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
- The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
- The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
- On 3 September 1974, the SAFSCOM Site Activation Team was relieved by the U.S.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- Grand Forks Air Force Base was established on 1 December 1955, with construction beginning in the fall of that year.
- During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
Facts about Shonai Airport (SYO):
- Shonai Airport (SYO) currently has only 1 runway.
- Because of Shonai Airport's relatively low elevation of 72 feet, planes can take off or land at Shonai 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.
- In addition to being known as "Shonai Airport", other names for SYO include "庄内空港" and "Shonai Kūkō".
- The closest airport to Shonai Airport (SYO) is Yamagata Airport (GAJ), which is located 42 miles (67 kilometers) SE of SYO.
- The airport opened in 1991 after lobbying efforts by local chambers of commerce, as the area was highly isolated from the major cities of Tokyo and Osaka, requiring half a day of travel to reach either.
- The furthest airport from Shonai Airport (SYO) is Rio Grande Regional Airport (RIG), which is located 11,620 miles (18,701 kilometers) away in Rio Grande, Brazil.
