Nonstop flight route between Sidney, Montana, United States and Lyon, France:
Departure Airport:

Arrival Airport:

Distance from SDY to LYS:
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- About this route
- SDY Airport Information
- LYS Airport Information
- Facts about SDY
- Facts about LYS
- 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 LYS
- List of Nearest Airports to LYS
- Map of Furthest Airports from LYS
- List of Furthest Airports from LYS
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Lyon–Saint Exupéry Airport (LYS), Lyon, France would travel a Great Circle distance of 4,698 miles (or 7,561 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 Sidney-Richland Municipal Airport and Lyon–Saint Exupéry 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 Sidney-Richland Municipal Airport and Lyon–Saint Exupéry Airport. You'll see that it will travel the same route of the red line on this map!
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: | LYS / LFLL |
Airport Names: |
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Location: | Lyon, France |
GPS Coordinates: | 45°43'32"N by 5°4'51"E |
Area Served: | Lyon, France |
Operator/Owner: | Aéroport de Lyon |
Airport Type: | Public |
Elevation: | 821 feet (250 meters) |
# of Runways: | 2 |
View all routes: | Routes from LYS |
More Information: | LYS 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.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
Facts about Lyon–Saint Exupéry Airport (LYS):
- Lyon–Saint Exupéry Airport handled 8,451,039 passengers last year.
- Because of Lyon–Saint Exupéry Airport's relatively low elevation of 821 feet, planes can take off or land at Lyon–Saint Exupéry 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 "Lyon–Saint Exupéry Airport", another name for LYS is "Aéroport Lyon-Saint Exupéry".
- Lyon–Saint Exupéry Airport (LYS) has 2 runways.
- The furthest airport from Lyon–Saint Exupéry Airport (LYS) is Chatham Islands (CHT), which is nearly antipodal to Lyon–Saint Exupéry Airport (meaning Lyon–Saint Exupéry Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,284 miles (19,770 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- In 2013, the airport served 8,562,298 passengers, an increase of 1.3% over the previous year.
- The closest airport to Lyon–Saint Exupéry Airport (LYS) is Lyon–Bron Airport (LYN), which is located only 7 miles (11 kilometers) W of LYS.