Nonstop flight route between Sundsvall, Sweden and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from SDL to ALN:
Share this route:
Jump to:
- About this route
- SDL Airport Information
- ALN Airport Information
- Facts about SDL
- Facts about ALN
- Map of Nearest Airports to SDL
- List of Nearest Airports to SDL
- Map of Furthest Airports from SDL
- List of Furthest Airports from SDL
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Sundsvall–Timrå Airport (SDL), Sundsvall, Sweden and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,374 miles (or 7,040 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 Sundsvall–Timrå Airport and St. Louis Regional 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 Sundsvall–Timrå Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SDL / ESNN |
Airport Name: | Sundsvall–Timrå Airport |
Location: | Sundsvall, Sweden |
GPS Coordinates: | 62°31'41"N by 17°26'38"E |
Operator/Owner: | Municipalities of Sundsvall and Timrå |
Airport Type: | Public |
Elevation: | 16 feet (5 meters) |
# of Runways: | 1 |
View all routes: | Routes from SDL |
More Information: | SDL Maps & Info |
Arrival 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 |
Facts about Sundsvall–Timrå Airport (SDL):
- The furthest airport from Sundsvall–Timrå Airport (SDL) is Chatham Islands (CHT), which is located 11,028 miles (17,748 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The closest airport to Sundsvall–Timrå Airport (SDL) is Örnsköldsvik Airport (OER), which is located 78 miles (125 kilometers) NE of SDL.
- Because of Sundsvall–Timrå Airport's relatively low elevation of 16 feet, planes can take off or land at Sundsvall–Timrå 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.
- Sundsvall–Timrå Airport (SDL) currently has only 1 runway.
Facts about St. Louis Regional Airport (ALN):
- 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.
- 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.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- 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.