Nonstop flight route between Defiance, Ohio, United States and Grand Forks, North Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from DFI to RDR:
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- About this route
- DFI Airport Information
- RDR Airport Information
- Facts about DFI
- Facts about RDR
- Map of Nearest Airports to DFI
- List of Nearest Airports to DFI
- Map of Furthest Airports from DFI
- List of Furthest Airports from DFI
- Map of Nearest Airports to RDR
- List of Nearest Airports to RDR
- Map of Furthest Airports from RDR
- List of Furthest Airports from RDR
About this route:
A direct, nonstop flight between Defiance Memorial Airport (DFI), Defiance, Ohio, United States and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 783 miles (or 1,260 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 Defiance Memorial Airport and Grand Forks Air Force Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | DFI / KDFI |
Airport Name: | Defiance Memorial Airport |
Location: | Defiance, Ohio, United States |
GPS Coordinates: | 41°20'14"N by 84°25'44"W |
Area Served: | Defiance, Ohio |
Operator/Owner: | Board of County Commissioners |
Airport Type: | Public |
Elevation: | 707 feet (215 meters) |
# of Runways: | 1 |
View all routes: | Routes from DFI |
More Information: | DFI Maps & Info |
Arrival 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 |
Facts about Defiance Memorial Airport (DFI):
- The closest airport to Defiance Memorial Airport (DFI) is Toledo Express Airport (TOL), which is located 36 miles (59 kilometers) ENE of DFI.
- Defiance Memorial Airport (DFI) currently has only 1 runway.
- Because of Defiance Memorial Airport's relatively low elevation of 707 feet, planes can take off or land at Defiance Memorial 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 Defiance Memorial Airport (DFI) is Margaret River Airport (MGV), which is located 11,256 miles (18,114 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Grand Forks Air Force Base (RDR):
- During the Cold War, GFAFB was a major installation of the Strategic Air Command, with B-52 bombers, KC-135 tankers, and Minuteman intercontinental ballistic missiles.
- 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.
- On 3 November 1967, the Department of Defense revealed that GFAFB was one of 10 initial locations to host a Sentinel Anti-Ballistic Missile site.
- 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.
- In October 1977, the PAR came under operational control of the USAF, which operated it thereafter as part of its early warning system.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
- In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.