Nonstop flight route between Champaign-Urbana, Illinois, United States and Porto, Portugal:
Departure Airport:

Arrival Airport:

Distance from CMI to OPO:
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- About this route
- CMI Airport Information
- OPO Airport Information
- Facts about CMI
- Facts about OPO
- Map of Nearest Airports to CMI
- List of Nearest Airports to CMI
- Map of Furthest Airports from CMI
- List of Furthest Airports from CMI
- 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 University of Illinois Willard Airport (CMI), Champaign-Urbana, Illinois, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 4,016 miles (or 6,464 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 University of Illinois Willard 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 University of Illinois Willard 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: | CMI / KCMI |
Airport Name: | University of Illinois Willard Airport |
Location: | Champaign-Urbana, Illinois, United States |
GPS Coordinates: | 40°2'21"N by 88°16'41"W |
Area Served: | Champaign-Urbana, Illinois |
Operator/Owner: | University of Illinois at Urbana-Champaign |
Airport Type: | Public |
Elevation: | 754 feet (230 meters) |
# of Runways: | 4 |
View all routes: | Routes from CMI |
More Information: | CMI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OPO / LPPR |
Airport Names: |
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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 University of Illinois Willard Airport (CMI):
- The furthest airport from University of Illinois Willard Airport (CMI) is Margaret River Airport (MGV), which is located 11,084 miles (17,838 kilometers) away in Margaret River, Western Australia, Australia.
- American Eagle has one daily flight to Dallas/Fort Worth International Airport on 50-seat ERJs, and six daily ERJ flights to Chicago's O'Hare International Airport.
- University of Illinois Willard Airport (CMI) has 4 runways.
- The airport is served by buses from the Champaign-Urbana Mass Transit District, which connect with intercity buses and with Amtrak.
- University of Illinois Willard Airport is south of Savoy in Tolono Township, Champaign County, Illinois.
- On January 28, 1998 President Bill Clinton was in Champaign-Urbana for a speaking engagement at Assembly Hall and arrived at Willard Airport on Air Force One.
- The closest airport to University of Illinois Willard Airport (CMI) is Decatur Airport (DEC), which is located 34 miles (55 kilometers) WSW of CMI.
- Because of University of Illinois Willard Airport's relatively low elevation of 754 feet, planes can take off or land at University of Illinois Willard 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.
Facts about Francisco Sá Carneiro Airport (OPO):
- 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.
- Francisco Sá Carneiro Airport or simply Porto Airport is an international airport near Porto, Portugal.
- The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
- Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
- In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
- STCP buses also link the airport and the city.
- 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.
- Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.