Nonstop flight route between San Francisco, California, United States and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from SFO to SDY:
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- About this route
- SFO Airport Information
- SDY Airport Information
- Facts about SFO
- Facts about SDY
- Map of Nearest Airports to SFO
- List of Nearest Airports to SFO
- Map of Furthest Airports from SFO
- List of Furthest Airports from SFO
- 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 San Francisco International Airport (SFO), San Francisco, California, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 1,152 miles (or 1,855 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 San Francisco 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: | SFO / KSFO |
Airport Name: | San Francisco International Airport |
Location: | San Francisco, California, United States |
GPS Coordinates: | 37°37'8"N by 122°22'30"W |
Area Served: | San Francisco |
Operator/Owner: | City & County of San Francisco |
Airport Type: | Public |
Elevation: | 13 feet (4 meters) |
# of Runways: | 4 |
View all routes: | Routes from SFO |
More Information: | SFO 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 San Francisco International Airport (SFO):
- The FAA has warned that the airport's control tower would be unable to withstand a major earthquake and has requested that it be replaced.
- In 1989 a master plan and Environmental Impact Report were prepared to guide development over the next two decades.
- Because of San Francisco International Airport's relatively low elevation of 13 feet, planes can take off or land at San Francisco 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.
- San Francisco International Airport (SFO) has 4 runways.
- San Francisco International Airport handled 44,477,209 passengers last year.
- The closest airport to San Francisco International Airport (SFO) is Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), which is located only 10 miles (16 kilometers) SW of SFO.
- On July 14, 2008, SFO was voted Best International Airport in North America for 2008 in the World Airports Survey by Skytrax.
- The furthest airport from San Francisco International Airport (SFO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,290 kilometers) away in Tôlanaro, Madagascar.
- All international Star Alliance members aside from Air Canada, Asiana, and TACA use Boarding Area G.
- The airport closed following the Loma Prieta earthquake on October 17, 1989, reopening the following morning.
- Formerly known as the "South Terminal," Terminal 1 has Boarding Area B and Boarding Area C.
- A long-planned extension of the Bay Area Rapid Transit system to the airport opened on June 22, 2003, allowing passengers to board BART trains at the international terminal to San Francisco or the East Bay.
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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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 closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.