Nonstop flight route between Grand Forks, North Dakota, United States and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from GFK to SDY:
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- About this route
- GFK Airport Information
- SDY Airport Information
- Facts about GFK
- Facts about SDY
- Map of Nearest Airports to GFK
- List of Nearest Airports to GFK
- Map of Furthest Airports from GFK
- List of Furthest Airports from GFK
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Grand Forks International Airport (GFK), Grand Forks, North Dakota, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 326 miles (or 524 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 Grand Forks International Airport and Sidney-Richland Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GFK / KGFK |
Airport Name: | Grand Forks International Airport |
Location: | Grand Forks, North Dakota, United States |
GPS Coordinates: | 47°56'57"N by 97°10'33"W |
Operator/Owner: | Grand Forks Regional Airport Authority |
Airport Type: | Public |
Elevation: | 845 feet (258 meters) |
# of Runways: | 4 |
View all routes: | Routes from GFK |
More Information: | GFK Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY Maps & Info |
Facts about Grand Forks International Airport (GFK):
- Because of Grand Forks International Airport's relatively low elevation of 845 feet, planes can take off or land at Grand Forks 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.
- Most operations at GFK is from the University of North Dakota.
- Grand Forks International Airport (GFK) has 4 runways.
- On October 3, 2012, United Airlines started flights between Denver, CO and Grand Forks, but on September 10, 2013 they announced they would end service on December 3, 2013 citing low loads.
- Due to the increased amount of general aviation traffic, primarily from the UND Aerospace flight training school, a fourth runway has been completed on the southeast side of the airport.
- KGFK is a non-hub, primary commercial service airport.
- The closest airport to Grand Forks International Airport (GFK) is Grand Forks Air Force Base (RDR), which is located only 10 miles (17 kilometers) W of GFK.
- On November 9, 2010 KGFK had 100,570 boardings, one more than the record achieved in 12 months in 1994.
- The consulting group recommended that a brand new passenger terminal would the best solution to the current terminal's problems.
- The furthest airport from Grand Forks International Airport (GFK) is Margaret River Airport (MGV), which is located 10,514 miles (16,921 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.