Nonstop flight route between Sidney, Montana, United States and Spokane, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from SDY to GEG:
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- About this route
- SDY Airport Information
- GEG Airport Information
- Facts about SDY
- Facts about GEG
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- Map of Nearest Airports to GEG
- List of Nearest Airports to GEG
- Map of Furthest Airports from GEG
- List of Furthest Airports from GEG
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Spokane International Airport (GEG), Spokane, Washington, United States would travel a Great Circle distance of 620 miles (or 998 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 Sidney-Richland Municipal Airport and Spokane International Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | GEG / KGEG |
Airport Names: |
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Location: | Spokane, Washington, United States |
GPS Coordinates: | 47°37'11"N by 117°32'2"W |
Area Served: | Spokane Airport Board |
Operator/Owner: | Spokane County-City |
Airport Type: | Public |
Elevation: | 2376 feet (724 meters) |
# of Runways: | 2 |
View all routes: | Routes from GEG |
More Information: | GEG Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- 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.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
Facts about Spokane International Airport (GEG):
- It became Spokane's municipal airport in 1946, replacing Felts Field, and received its present name in 1960, after the City of Spokane was allotted Spokane Geiger Field by the Surplus Property Act.
- Spokane International Airport provides 24 gates on 3 concourses.
- The furthest airport from Spokane International Airport (GEG) is Tôlanaro Airport (FTU), which is located 10,661 miles (17,158 kilometers) away in Tôlanaro, Madagascar.
- The airport plans to add another concourse in the next 5–10 years and looks to add more direct flights to the east coast.
- The closest airport to Spokane International Airport (GEG) is Fairchild Air Force Base (SKA), which is located only 6 miles (9 kilometers) W of GEG.
- Spokane International Airport (GEG) has 2 runways.
- In addition to being known as "Spokane International Airport", another name for GEG is "Geiger Army Airfield".