Nonstop flight route between Pittsburgh, Pennsylvania, United States and Alton, Illinois, United States:
Departure Airport:
(40°21'15"N by 79°55'48"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from AGC to ALN:
547.47 miles (881.06 km)
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Jump to:
- About this route
- AGC Airport Information
- ALN Airport Information
- Facts about AGC
- Facts about ALN
- Map of Nearest Airports to AGC
- List of Nearest Airports to AGC
- Map of Furthest Airports from AGC
- List of Furthest Airports from AGC
- 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 Allegheny County Airport (AGC), Pittsburgh, Pennsylvania, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 547 miles (or 881 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 Allegheny County 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: | AGC / KAGC |
| Airport Name: | Allegheny County Airport |
| Location: | Pittsburgh, Pennsylvania, United States |
| GPS Coordinates: | 40°21'15"N by 79°55'48"W |
| Operator/Owner: | Allegheny County Airport Authority |
| Airport Type: | Public |
| Elevation: | 1252 feet (382 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from AGC |
| More Information: | AGC 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 Allegheny County Airport (AGC):
- The furthest airport from Allegheny County Airport (AGC) is Margaret River Airport (MGV), which is located 11,499 miles (18,506 kilometers) away in Margaret River, Western Australia, Australia.
- Harold Gatty and Wiley Post visited the airport as it was finishing construction both from the ground and air and commented that it was the finest airport they had encountered.
- The closest airport to Allegheny County Airport (AGC) is Forbes Field (FOE), which is located only 6 miles (10 kilometers) NNW of AGC.
- The airport has a small station currently operated by the Allegheny County Police Department as a local station and a base for airport security operations.
- Allegheny County Airport (AGC) has 2 runways.
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 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- In the spring of 2004 the airport was at the center of a scandal.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 6.18 miles (9.94 km) NNW | Forbes Field (FOE) | Topeka, Kansas, United States |     |
| 2 | 18.52 miles (29.80 km) WNW | Pittsburgh International Airport (PIT) | Findlay (near Pittsburgh), Pennsylvania, United States | |
| 3 | 24.24 miles (39.01 km) SW | Washington County Airport (WSG) | Washington, Pennsylvania, United States | |
| 4 | 28.12 miles (45.26 km) E | Arnold Palmer Regional Airport (LBE) | Latrobe (near Pittsburgh), Pennsylvania, United States | |
| 5 | 28.12 miles (45.26 km) E | Arnold Palmer Regional Airport (LTB) | Latrobe, Tasmania, Australia | |
| 6 | 29.21 miles (47.01 km) N | Butler County Airport (BTP) | Butler, Pennsylvania, United States | |
| 7 | 33.06 miles (53.21 km) SSW | Greene County Airport (WAY) | Waynesburg, Pennsylvania, United States | |
| 8 | 37.69 miles (60.66 km) NW | Beaver County Airport (BFP) | Beaver Falls, Pennsylvania, United States | |
| 9 | 39.74 miles (63.96 km) WSW | Wheeling Ohio County Airport (HLG) | Wheeling, West Virginia, United States | |
| 10 | 47.39 miles (76.27 km) ENE | Indiana County-Jimmy Stewart Airport (IDI) | Indiana, Pennsylvania, United States | |
| 11 | 49.17 miles (79.14 km) S | Morgantown Municipal Airport (MGW) | Morgantown, West Virginia, United States | |
| 12 | 57.76 miles (92.95 km) E | John Murtha Johnstown–Cambria County Airport (JST) | Johnstown, Pennsylvania, United States | |
| 13 | 70.80 miles (113.95 km) N | Venango Regional Airport (FKL) | Franklin, Pennsylvania, United States | |
| 14 | 73.87 miles (118.88 km) NNW | Youngstown-Warren Regional Airport (YNG) (YNG) | Youngstown/Warren, Ohio, United States | |
| 15 | 74.77 miles (120.33 km) SSW | North Central West Virginia Airport (CKB) | Clarksburg, West Virginia, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,499.29 miles (18,506.27 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,475.71 miles (18,468.32 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,460.56 miles (18,443.93 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,450.65 miles (18,427.99 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,401.43 miles (18,348.78 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,399.14 miles (18,345.08 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,389.48 miles (18,329.55 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,378.87 miles (18,312.47 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,365.91 miles (18,291.62 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,346.00 miles (18,259.57 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,286.03 miles (18,163.05 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,251.34 miles (18,107.23 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,245.85 miles (18,098.40 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,236.41 miles (18,083.20 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,171.52 miles (17,978.78 km) SW | 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 | |