Nonstop flight route between Alton, Illinois, United States and Sault Ste Marie, Michigan, United States:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(46°15'2"N by 84°28'20"W)
Distance from ALN to CIU:
581.94 miles (936.53 km)
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Jump to:
- About this route
- ALN Airport Information
- CIU Airport Information
- Facts about ALN
- Facts about 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
- Map of Nearest Airports to CIU
- List of Nearest Airports to CIU
- Map of Furthest Airports from CIU
- List of Furthest Airports from CIU
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Chippewa County International Airport (CIU), Sault Ste Marie, Michigan, 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 St. Louis Regional Airport and Chippewa County International Airport, the route shown on this map most likely still appears to be a straight line.
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: | 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 |
Facts about St. Louis Regional Airport (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.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
- 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.
Facts about Chippewa County International Airport (CIU):
- 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.
- 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.
- Chippewa County International Airport covers an area of 1,850 acres at an elevation of 799 feet above mean sea level.
- 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.
| 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 | |
| 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 | |