Nonstop flight route between Harrison, Arkansas, United States and Alton, Illinois, United States:
Departure Airport:
(36°15'41"N by 93°9'16"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from HRO to ALN:
248.90 miles (400.57 km)
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Jump to:
- About this route
- HRO Airport Information
- ALN Airport Information
- Facts about HRO
- Facts about ALN
- Map of Nearest Airports to HRO
- List of Nearest Airports to HRO
- Map of Furthest Airports from HRO
- List of Furthest Airports from HRO
- 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 Boone County Airport (HRO), Harrison, Arkansas, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 249 miles (or 401 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 Boone 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: | HRO / KHRO |
| Airport Names: |
|
| Location: | Harrison, Arkansas, United States |
| GPS Coordinates: | 36°15'41"N by 93°9'16"W |
| Area Served: | Harrison, Arkansas |
| Operator/Owner: | Boone County |
| Airport Type: | Public |
| Elevation: | 1365 feet (416 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HRO |
| More Information: | HRO 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 Boone County Airport (HRO):
- Boone County Airport covers an area of 425 acres at an elevation of 1,365 feet above mean sea level.
- Boone County Airport (HRO) currently has only 1 runway.
- The closest airport to Boone County Airport (HRO) is Branson Airport (BKG), which is located only 19 miles (30 kilometers) N of HRO.
- The furthest airport from Boone County Airport (HRO) is Margaret River Airport (MGV), which is located 10,837 miles (17,441 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "Boone County Airport", another name for HRO is "Boone County Regional Airport".
Facts about St. Louis Regional Airport (ALN):
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 18.87 miles (30.36 km) N | Branson Airport (BKG) | Branson, Missouri, United States |     |
| 2 | 25.52 miles (41.06 km) N | M. Graham Clark Downtown Airport (PLK) | Point Lookout, Missouri, United States | |
| 3 | 31.51 miles (50.70 km) E | Marion County Regional Airport (FLP) | Flippin, Arkansas, United States | |
| 4 | 38.81 miles (62.45 km) E | Ozark Regional Airport (WMH) | Mountain Home, Arkansas, United States | |
| 5 | 53.56 miles (86.20 km) W | Rogers Municipal Airport (ROG) | Rogers, Arkansas, United States | |
| 6 | 54.08 miles (87.03 km) W | Springdale Municipal Airport (SPZ) | Springdale, Arkansas, United States | |
| 7 | 59.36 miles (95.53 km) WSW | Drake Field (FYV) | Fayetteville, Arkansas, United States | |
| 8 | 64.25 miles (103.39 km) W | Northwest Arkansas Regional Airport (XNA) | Fayetteville/Springdale, Arkansas, United States | |
| 9 | 69.22 miles (111.40 km) N | Springfield–Branson National Airport (SGF) | Springfield, Missouri, United States | |
| 10 | 74.58 miles (120.02 km) W | Smith Field (SLG) | Siloam Springs, Arkansas, United States | |
| 11 | 78.46 miles (126.27 km) WNW | Neosho Hugh Robinson Airport (EOS) | Neosho, Missouri, United States | |
| 12 | 78.77 miles (126.77 km) S | Petit Jean Park Airport (MPJ) | Morrilton, Arkansas, United States | |
| 13 | 92.02 miles (148.08 km) ESE | Batesville Regional Airport (BVX) | Batesville, Arkansas, United States | |
| 14 | 93.28 miles (150.12 km) SW | Fort Smith Regional Airport (FSM) | Fort Smith, Arkansas, United States | |
| 15 | 96.55 miles (155.39 km) NW | Joplin Regional Airport (JLN) | Joplin, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,837.09 miles (17,440.56 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,816.27 miles (17,407.05 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,795.41 miles (17,373.48 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,784.66 miles (17,356.18 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,775.92 miles (17,342.12 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,762.72 miles (17,320.88 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 7 | 10,758.85 miles (17,314.64 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,750.70 miles (17,301.53 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,740.65 miles (17,285.35 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 10 | 10,731.58 miles (17,270.76 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 11 | 10,707.96 miles (17,232.75 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 12 | 10,702.33 miles (17,223.69 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 13 | 10,691.01 miles (17,205.47 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 14 | 10,686.71 miles (17,198.54 km) W | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,679.79 miles (17,187.41 km) W | Morawa Airport (MWB) | Morawa, 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 | |