Nonstop flight route between Sparta, Wisconsin, United States and Porto, Portugal:
Departure Airport:

Arrival Airport:

Distance from CMY to OPO:
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- About this route
- CMY Airport Information
- OPO Airport Information
- Facts about CMY
- Facts about OPO
- Map of Nearest Airports to CMY
- List of Nearest Airports to CMY
- Map of Furthest Airports from CMY
- List of Furthest Airports from CMY
- Map of Nearest Airports to OPO
- List of Nearest Airports to OPO
- Map of Furthest Airports from OPO
- List of Furthest Airports from OPO
About this route:
A direct, nonstop flight between Sparta/Fort McCoy Airport (CMY), Sparta, Wisconsin, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 3,996 miles (or 6,431 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 Sparta/Fort McCoy Airport and Francisco Sá Carneiro 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 Sparta/Fort McCoy Airport and Francisco Sá Carneiro Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CMY / KCMY |
Airport Name: | Sparta/Fort McCoy Airport |
Location: | Sparta, Wisconsin, United States |
GPS Coordinates: | 43°57'29"N by 90°44'16"W |
Operator/Owner: | U.S. Army |
Airport Type: | Public/Military |
Elevation: | 838 feet (255 meters) |
# of Runways: | 2 |
View all routes: | Routes from CMY |
More Information: | CMY Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OPO / LPPR |
Airport Names: |
|
Location: | Porto, Portugal |
GPS Coordinates: | 41°14'8"N by 8°40'41"W |
Area Served: | Porto, Portugal |
Operator/Owner: | Government of Portugal. |
Airport Type: | Public |
Elevation: | 226 feet (69 meters) |
# of Runways: | 1 |
View all routes: | Routes from OPO |
More Information: | OPO Maps & Info |
Facts about Sparta/Fort McCoy Airport (CMY):
- Because of Sparta/Fort McCoy Airport's relatively low elevation of 838 feet, planes can take off or land at Sparta/Fort McCoy 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.
- Sparta/Fort McCoy Airport (CMY) has 2 runways.
- The furthest airport from Sparta/Fort McCoy Airport (CMY) is Margaret River Airport (MGV), which is located 10,894 miles (17,532 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Sparta/Fort McCoy Airport (CMY) is Volk Field Air National Guard Base (VOK), which is located 24 miles (39 kilometers) E of CMY.
Facts about Francisco Sá Carneiro Airport (OPO):
- The furthest airport from Francisco Sá Carneiro Airport (OPO) is Westport Airport (WSZ), which is nearly antipodal to Francisco Sá Carneiro Airport (meaning Francisco Sá Carneiro Airport is almost on the exact opposite side of the Earth from Westport Airport), and is located 12,400 miles (19,955 kilometers) away in Westport, New Zealand.
- On 25 February 2008, Airports Council International announced that according to its 2007 Airport Service Quality Survey, Porto placed first overall in Europe for service and placed fourth among airports worldwide having fewer than 5 million passengers.
- In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
- Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
- Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
- The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
- STCP buses also link the airport and the city.
- Because of Francisco Sá Carneiro Airport's relatively low elevation of 226 feet, planes can take off or land at Francisco Sá Carneiro 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.