Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Porto, Portugal:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(41°14'8"N by 8°40'41"W)
Distance from CPS to OPO:
4,154.29 miles (6,685.66 km)
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Jump to:
- About this route
- CPS Airport Information
- OPO Airport Information
- Facts about CPS
- Facts about OPO
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- 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 St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 4,154 miles (or 6,686 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 St. Louis Downtown 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 St. Louis Downtown 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: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS 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 St. Louis Downtown Airport (CPS):
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
Facts about Francisco Sá Carneiro Airport (OPO):
- Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
- 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 2007, the airport was voted the Best Airport in Europe in the Airport Service Quality Awards by Airports Council International.
- In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
- 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.
- The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of 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.
- Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 27.12 miles (43.64 km) NNE | Braga Airport (BGZ) | Braga, Portugal | |
| 2 | 49.86 miles (80.24 km) E | Vila Real Airport (VRL) | Vila Real, Portugal | |
| 3 | 68.70 miles (110.56 km) N | Vigo Airport (VGO) | Vigo, Galicia, Spain | |
| 4 | 75.37 miles (121.30 km) S | Coimbra Airport (CBP) | Coimbra, Portugal | |
| 5 | 91.82 miles (147.78 km) SE | Covilhã Airport (COV) | Covilhã, Portugal | |
| 6 | 110.56 miles (177.94 km) ENE | Bragança Airport (BGC) | Bragança, Portugal | |
| 7 | 115.54 miles (185.94 km) N | Santiago de Compostela Airport (SCQ) | Santiago de Compostela, Spain | |
| 8 | 143.60 miles (231.10 km) N | A Coruña Airport (LCG) | A Coruña, Spain | |
| 9 | 166.53 miles (268.01 km) E | Salamanca-Matacán Airport (SLM) | Salamanca, Spain | |
| 10 | 171.77 miles (276.44 km) S | Lisbon Portela Airport (LIS) | Lisbon, Portugal | |
| 11 | 181.35 miles (291.86 km) ENE | León Airport (LEN) | León, Spain | |
| 12 | 189.39 miles (304.79 km) SSE | Badajoz Airport (BJZ) | Badajoz, Spain | |
| 13 | 200.72 miles (323.02 km) E | Valladolid International Airport (VLL) | Valladolid, Spain | |
| 14 | 209.89 miles (337.78 km) NE | Asturias Airport (OVD) | Oviedo, Asturias, Spain | |
| 15 | 221.68 miles (356.76 km) S | Beja Airport (BYJ) | Beja, Portugal | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,399.58 miles (19,955.14 km) SSW | Westport Airport (WSZ) | Westport, New Zealand | |
| 2 | 12,356.20 miles (19,885.33 km) WSW | Takaka Aerodrome (KTF) | Takaka, New Zealand | |
| 3 | 12,351.81 miles (19,878.26 km) S | Greymouth Airport (GMN) | Greymouth, New Zealand | |
| 4 | 12,349.51 miles (19,874.56 km) W | Motueka Aerodrome (MZP) | Motueka, New Zealand | |
| 5 | 12,338.07 miles (19,856.16 km) W | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 6 | 12,333.22 miles (19,848.35 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 7 | 12,303.25 miles (19,800.10 km) W | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 8 | 12,293.50 miles (19,784.43 km) SW | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 9 | 12,269.27 miles (19,745.42 km) SSW | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 12,269.21 miles (19,745.34 km) SSE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 11 | 12,255.84 miles (19,723.81 km) W | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 12 | 12,251.77 miles (19,717.26 km) SSE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 12,250.90 miles (19,715.86 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 14 | 12,244.42 miles (19,705.44 km) W | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 15 | 12,242.51 miles (19,702.36 km) SSE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |