Nonstop flight route between Alton, Illinois, United States and Þórshöfn, Iceland:
Departure Airport:

Arrival Airport:

Distance from ALN to THO:
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- About this route
- ALN Airport Information
- THO Airport Information
- Facts about ALN
- Facts about THO
- 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 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 Regional Airport (ALN), Alton, Illinois, United States and Þórshöfn Airport (THO), Þórshöfn, Iceland would travel a Great Circle distance of 3,379 miles (or 5,438 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 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 Regional 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: | 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: | 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 Regional Airport (ALN):
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
Facts about Þórshöfn Airport (THO):
- 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.
- In addition to being known as "Þórshöfn Airport", another name for THO is "Þórshafnarflugvöllur".
- Þórshöfn Airport (THO) currently has only 1 runway.
- 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.
- The closest airport to Þórshöfn Airport (THO) is Vopnafjörður Airport (VPN), which is located 37 miles (60 kilometers) SSE of THO.