Nonstop flight route between Boston, Massachusetts, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from BOS to ALN:
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- About this route
- BOS Airport Information
- ALN Airport Information
- Facts about BOS
- Facts about ALN
- Map of Nearest Airports to BOS
- List of Nearest Airports to BOS
- Map of Furthest Airports from BOS
- List of Furthest Airports from BOS
- 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 Boston Logan International Airport (BOS), Boston, Massachusetts, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,024 miles (or 1,649 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 relatively short distance between Boston Logan International Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | BOS / KBOS |
Airport Name: | Boston Logan International Airport |
Location: | Boston, Massachusetts, United States |
GPS Coordinates: | 42°21'47"N by 71°0'23"W |
Area Served: | Boston, Massachusetts, US |
Operator/Owner: | Massachusetts Port Authority (Massport) |
Airport Type: | Public |
Elevation: | 20 feet (6 meters) |
# of Runways: | 6 |
View all routes: | Routes from BOS |
More Information: | BOS 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 Boston Logan International Airport (BOS):
- Logan has flights to the Azores and Cape Verde because they link Azores American and Cape Verdean American communities in Massachusetts and Rhode Island.
- The furthest airport from Boston Logan International Airport (BOS) is Margaret River Airport (MGV), which is located 11,767 miles (18,937 kilometers) away in Margaret River, Western Australia, Australia.
- Boston Logan International Airport handled 3,021,863 passengers last year.
- The closest airport to Boston Logan International Airport (BOS) is Norwood Memorial Airport (OWD), which is located only 15 miles (24 kilometers) SW of BOS.
- The Airbus A380 first landed at Logan Airport for compatibility checks on February 8, 2010.
- When Terminal E opened in 1974 it was the second largest international arrivals facility in the United States.
- Boston Logan International Airport (BOS) has 6 runways.
- There was fierce opposition to the construction of 14/32 among communities adjacent to the northwest side of the airport, such as Chelsea and East Boston, as authorities acknowledged that these areas would likely see a slight increase in noise levels.
- Because of Boston Logan International Airport's relatively low elevation of 20 feet, planes can take off or land at Boston Logan International 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.
- Logan International Airport surpassed the 30 million passenger mark in the 2013 calendar year, at 30.2 million passengers.
Facts about St. Louis Regional Airport (ALN):
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.