Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Þórshöfn, Iceland:
Departure Airport:

Arrival Airport:

Distance from CPS to THO:
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- About this route
- CPS Airport Information
- THO Airport Information
- Facts about CPS
- Facts about THO
- 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 THO
- List of Nearest Airports to THO
- Map of Furthest Airports from THO
- List of Furthest Airports from THO
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Þórshöfn Airport (THO), Þórshöfn, Iceland would travel a Great Circle distance of 3,401 miles (or 5,474 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 Þórshöfn 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 Þórshöfn 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: | THO / BITN |
Airport Names: |
|
Location: | Þórshöfn, Iceland |
GPS Coordinates: | 66°13'5"N by 15°20'8"W |
Area Served: | Þórshöfn, Iceland |
Operator/Owner: | ISAVIA |
Airport Type: | Public |
Elevation: | 64 feet (20 meters) |
# of Runways: | 1 |
View all routes: | Routes from THO |
More Information: | THO Maps & Info |
Facts about St. Louis Downtown Airport (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.
- 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.
Facts about Þórshöfn Airport (THO):
- The closest airport to Þórshöfn Airport (THO) is Vopnafjörður Airport (VPN), which is located 37 miles (60 kilometers) SSE of THO.
- Because of Þórshöfn Airport's relatively low elevation of 64 feet, planes can take off or land at Þórshöfn 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 "Þórshöfn Airport", another name for THO is "Þórshafnarflugvöllur".
- The furthest airport from Þórshöfn Airport (THO) is Ryan's Creek Aerodrome (SZS), which is located 11,096 miles (17,857 kilometers) away in Stewart Island, New Zealand.
- Þórshöfn Airport (THO) currently has only 1 runway.