Nonstop flight route between Sault Ste Marie, Michigan, United States and Alton, Illinois, United States:
Departure Airport:
(46°15'2"N by 84°28'20"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from CIU to ALN:
581.94 miles (936.53 km)
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Jump to:
- About this route
- CIU Airport Information
- ALN Airport Information
- Facts about CIU
- Facts about ALN
- Map of Nearest Airports to CIU
- List of Nearest Airports to CIU
- Map of Furthest Airports from CIU
- List of Furthest Airports from CIU
- 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 Chippewa County International Airport (CIU), Sault Ste Marie, Michigan, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 582 miles (or 937 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 Chippewa County 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: | CIU / KCIU |
| Airport Name: | Chippewa County International Airport |
| Location: | Sault Ste Marie, Michigan, United States |
| GPS Coordinates: | 46°15'2"N by 84°28'20"W |
| Area Served: | Sault Ste. Marie, Michigan |
| Operator/Owner: | Chippewa County EDC |
| Airport Type: | Public |
| Elevation: | 799 feet (244 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from CIU |
| More Information: | CIU 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 Chippewa County International Airport (CIU):
- The furthest airport from Chippewa County International Airport (CIU) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
- Chippewa County International Airport covers an area of 1,850 acres at an elevation of 799 feet above mean sea level.
- The closest airport to Chippewa County International Airport (CIU) is Kincheloe Air Force Base (INR), which is located only 0 mile (0 kilometer) N of CIU.
- Chippewa County International Airport (CIU) has 2 runways.
- Because of Chippewa County International Airport's relatively low elevation of 799 feet, planes can take off or land at Chippewa County 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.
Facts about St. Louis Regional Airport (ALN):
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 0.00 miles (0.00 km) N | Kincheloe Air Force Base (INR) | Sault Ste. Marie, Michigan, United States |     |
| 2 | 16.28 miles (26.19 km) N | Sault Ste. Marie Airport (YAM) | Sault Ste. Marie, Ontario, Canada | |
| 3 | 27.80 miles (44.75 km) SSW | Mackinac Island Airport (MCD) | Mackinac Island, Michigan, United States | |
| 4 | 38.67 miles (62.23 km) ESE | Drummond Island Airport (DRE) | Drummond Island, Michigan, United States | |
| 5 | 49.50 miles (79.66 km) SSW | Pellston Regional Airport of Emmet County (PLN) | Pellston, Michigan, United States | |
| 6 | 86.25 miles (138.80 km) S | Gaylord Regional Airport (GLR) | Gaylord, Michigan, United States | |
| 7 | 91.50 miles (147.26 km) E | Elliot Lake Municipal Airport (YEL) | Elliot Lake, Ontario, Canada | |
| 8 | 92.23 miles (148.43 km) SSE | Alpena County Regional Airport (APN) | Alpena, Michigan, United States | |
| 9 | 94.00 miles (151.28 km) SSW | Antrim County Airport (ACB) | Bellaire, Michigan, United States | |
| 10 | 94.73 miles (152.45 km) ESE | Gore Bay-Manitoulin Airport (YZE) | Gore Bay, Ontario, Canada | |
| 11 | 117.31 miles (188.78 km) SSW | Cherry Capital Airport (TVC) | Traverse City, Michigan, United States | |
| 12 | 119.49 miles (192.29 km) N | Wawa Airport (YXZ) | Wawa, Ontario, Canada | |
| 13 | 120.70 miles (194.24 km) NNE | Chapleau Airport (YLD) | Chapleau, Ontario, Canada | |
| 14 | 128.53 miles (206.85 km) ESE | Manitowaning/Manitoulin East Municipal Airport (YEM) | Manitowaning, Ontario, Canada | |
| 15 | 131.01 miles (210.84 km) WSW | Delta County Airport (ESC) | Escanaba, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,103.47 miles (17,869.26 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,079.43 miles (17,830.56 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,077.35 miles (17,827.22 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,053.00 miles (17,788.04 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,038.50 miles (17,764.70 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,988.82 miles (17,684.74 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,987.48 miles (17,682.60 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 8 | 10,980.21 miles (17,670.88 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,968.76 miles (17,652.47 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,916.64 miles (17,568.59 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,845.74 miles (17,454.49 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,820.93 miles (17,414.56 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,807.59 miles (17,393.09 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 14 | 10,798.96 miles (17,379.20 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,798.29 miles (17,378.11 km) SW | Kalbarri Airport (KAX) | Kalbarri, 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 | |