Nonstop flight route between Alton, Illinois, United States and Coimbra, Portugal:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(40°9'21"N by 8°28'12"W)
Distance from ALN to CBP:
4,181.99 miles (6,730.24 km)
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Jump to:
- About this route
- ALN Airport Information
- CBP Airport Information
- Facts about ALN
- Facts about CBP
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to CBP
- List of Nearest Airports to CBP
- Map of Furthest Airports from CBP
- List of Furthest Airports from CBP
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Coimbra Airport (CBP), Coimbra, Portugal would travel a Great Circle distance of 4,182 miles (or 6,730 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 Regional Airport and Coimbra 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 Regional Airport and Coimbra Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | CBP / LPCO |
| Airport Names: |
|
| Location: | Coimbra, Portugal |
| GPS Coordinates: | 40°9'21"N by 8°28'12"W |
| Area Served: | Coimbra |
| Operator/Owner: | Câmara Municipal de Coimbra |
| Airport Type: | Public |
| Elevation: | 571 feet (174 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CBP |
| More Information: | CBP Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- In the spring of 2004 the airport was at the center of a scandal.
- The 2,250 acres airfield sits at 544 ft MSL.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
- West Star Aviation is the largest fixed base operations company at the airport.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 Coimbra Airport (CBP):
- In addition to being known as "Coimbra Airport", another name for CBP is "Aeródromo Municipal Bissaya Barreto".
- Because of Coimbra Airport's relatively low elevation of 571 feet, planes can take off or land at Coimbra 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 furthest airport from Coimbra Airport (CBP) is Takaka Aerodrome (KTF), which is nearly antipodal to Coimbra Airport (meaning Coimbra Airport is almost on the exact opposite side of the Earth from Takaka Aerodrome), and is located 12,352 miles (19,879 kilometers) away in Takaka, New Zealand.
- The closest airport to Coimbra Airport (CBP) is Covilhã Airport (COV), which is located 53 miles (85 kilometers) E of CBP.
- Coimbra Airport (CBP) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 52.77 miles (84.93 km) E | Covilhã Airport (COV) | Covilhã, Portugal | |
| 2 | 75.37 miles (121.30 km) N | Francisco Sá Carneiro Airport (OPO) | Porto, Portugal | |
| 3 | 86.87 miles (139.81 km) NNE | Vila Real Airport (VRL) | Vila Real, Portugal | |
| 4 | 98.87 miles (159.11 km) N | Braga Airport (BGZ) | Braga, Portugal | |
| 5 | 101.84 miles (163.90 km) SSW | Lisbon Portela Airport (LIS) | Lisbon, Portugal | |
| 6 | 123.91 miles (199.42 km) SE | Badajoz Airport (BJZ) | Badajoz, Spain | |
| 7 | 143.47 miles (230.89 km) N | Vigo Airport (VGO) | Vigo, Galicia, Spain | |
| 8 | 146.38 miles (235.58 km) SSE | Beja Airport (BYJ) | Beja, Portugal | |
| 9 | 149.16 miles (240.05 km) NE | Bragança Airport (BGC) | Bragança, Portugal | |
| 10 | 165.22 miles (265.90 km) ENE | Salamanca-Matacán Airport (SLM) | Salamanca, Spain | |
| 11 | 189.36 miles (304.74 km) N | Santiago de Compostela Airport (SCQ) | Santiago de Compostela, Spain | |
| 12 | 207.96 miles (334.68 km) S | Portimão Airport (PRM) | Portimão, Algarve, Portugal | |
| 13 | 217.09 miles (349.36 km) ENE | Valladolid International Airport (VLL) | Valladolid, Spain | |
| 14 | 217.41 miles (349.88 km) N | A Coruña Airport (LCG) | A Coruña, Spain | |
| 15 | 218.77 miles (352.07 km) S | Faro International Airport (FAO) | Faro, Portugal | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,352.22 miles (19,878.92 km) SW | Takaka Aerodrome (KTF) | Takaka, New Zealand | |
| 2 | 12,335.04 miles (19,851.27 km) SW | Motueka Aerodrome (MZP) | Motueka, New Zealand | |
| 3 | 12,327.46 miles (19,839.08 km) S | Westport Airport (WSZ) | Westport, New Zealand | |
| 4 | 12,318.19 miles (19,824.16 km) SW | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 5 | 12,282.46 miles (19,766.65 km) SW | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 6 | 12,276.53 miles (19,757.10 km) S | Greymouth Airport (GMN) | Greymouth, New Zealand | |
| 7 | 12,274.99 miles (19,754.62 km) WSW | New Plymouth Airport (NPL) | New Plymouth, New Zealand | |
| 8 | 12,257.85 miles (19,727.06 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 9 | 12,251.49 miles (19,716.81 km) W | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 10 | 12,247.93 miles (19,711.09 km) WSW | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 11 | 12,247.22 miles (19,709.95 km) WSW | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 12 | 12,246.69 miles (19,709.08 km) SW | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 13 | 12,220.96 miles (19,667.68 km) W | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 14 | 12,214.14 miles (19,656.71 km) WSW | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 15 | 12,200.78 miles (19,635.21 km) SSW | Christchurch International Airport (CHC) | Christchurch, New Zealand | |