Nonstop flight route between Seymour, Indiana, United States and Alton, Illinois, United States:
Departure Airport:
(38°55'28"N by 85°54'29"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from SER to ALN:
222.46 miles (358.02 km)
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Jump to:
- About this route
- SER Airport Information
- ALN Airport Information
- Facts about SER
- Facts about ALN
- Map of Nearest Airports to SER
- List of Nearest Airports to SER
- Map of Furthest Airports from SER
- List of Furthest Airports from SER
- 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 Freeman Municipal Airport (SER), Seymour, Indiana, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 222 miles (or 358 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 Freeman Municipal 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: | SER / KSER |
| Airport Name: | Freeman Municipal Airport |
| Location: | Seymour, Indiana, United States |
| GPS Coordinates: | 38°55'28"N by 85°54'29"W |
| Area Served: | Seymour, Indiana |
| Operator/Owner: | Seymour Airport Authority |
| Airport Type: | Public |
| Elevation: | 583 feet (178 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from SER |
| More Information: | SER 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 Freeman Municipal Airport (SER):
- Because of Freeman Municipal Airport's relatively low elevation of 583 feet, planes can take off or land at Freeman Municipal 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.
- After the end of World War II, Freeman AAF became a storage depot of many captured German and Italian aircraft.
- The furthest airport from Freeman Municipal Airport (SER) is Margaret River Airport (MGV), which is located 11,222 miles (18,060 kilometers) away in Margaret River, Western Australia, Australia.
- Freeman Municipal Airport (SER) has 4 runways.
- Freeman Municipal Airport is a public use airport located two nautical miles southwest of the central business district of Seymour, a city in Jackson County, Indiana, United States.
- The closest airport to Freeman Municipal Airport (SER) is Columbus Municipal Airport (CLU), which is located 23 miles (38 kilometers) N of SER.
Facts about St. Louis Regional Airport (ALN):
- The 2,250 acres airfield sits at 544 ft MSL.
- 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 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.
- 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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- West Star Aviation is the largest fixed base operations company at the airport.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 23.31 miles (37.51 km) N | Columbus Municipal Airport (CLU) | Columbus, Indiana, United States |     |
| 2 | 26.45 miles (42.56 km) ESE | Madison Municipal Airport (MDN) | Madison, Indiana, United States | |
| 3 | 29.47 miles (47.42 km) WSW | Virgil I. Grissom Municipal Airport (BFR) | Bedford, Indiana, United States | |
| 4 | 40.98 miles (65.95 km) WNW | Monroe County Airport (BMG) | Bloomington, Indiana, United States | |
| 5 | 48.78 miles (78.50 km) SW | French Lick Municipal Airport (FRH) | French Lick, Indiana, United States | |
| 6 | 49.92 miles (80.33 km) SSE | Bowman Field (LOU) | Louisville, Kentucky, United States | |
| 7 | 52.68 miles (84.79 km) S | Louisville International Airport (SDF) | Louisville, Kentucky, United States | |
| 8 | 58.52 miles (94.17 km) NNW | Indianapolis International Airport (IND) | Indianapolis, Indiana, United States | |
| 9 | 60.51 miles (97.38 km) N | Pope Field (GFD) | Greenfield, Indiana, United States | |
| 10 | 67.17 miles (108.11 km) E | Cincinnati/Northern Kentucky International Airport (CVG) | Hebron, Kentucky (near Cincinnati), United States | |
| 11 | 67.70 miles (108.95 km) NE | Mettel Field (CEV) | Connersville, Indiana, United States | |
| 12 | 70.41 miles (113.31 km) S | Godman Army Airfield (FTK) | Fort Knox, Kentucky, United States | |
| 13 | 72.19 miles (116.18 km) NE | Miami University Airport (OXD) | Oxford, Ohio, United States | |
| 14 | 73.26 miles (117.90 km) SW | Huntingburg Airport (HNB) | Huntingburg, Indiana, United States | |
| 15 | 74.61 miles (120.07 km) SE | Capital City Airport (FFT) | Frankfort, Kentucky, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,222.13 miles (18,060.22 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,199.73 miles (18,024.17 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,176.59 miles (17,986.94 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,175.52 miles (17,985.22 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 11,142.58 miles (17,932.20 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,127.73 miles (17,908.29 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,118.27 miles (17,893.07 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 11,108.59 miles (17,877.50 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 11,102.40 miles (17,867.54 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 11,080.44 miles (17,832.19 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 11,067.30 miles (17,811.05 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,042.39 miles (17,770.96 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,018.38 miles (17,732.32 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,014.48 miles (17,726.04 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,992.30 miles (17,690.35 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 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 | |