Nonstop flight route between Kilronan, Inishmore, Ireland and Alton, Illinois, United States:
Departure Airport:
(53°6'24"N by 9°39'14"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from IOR to ALN:
3,768.52 miles (6,064.83 km)
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- About this route
- IOR Airport Information
- ALN Airport Information
- Facts about IOR
- Facts about ALN
- Map of Nearest Airports to IOR
- List of Nearest Airports to IOR
- Map of Furthest Airports from IOR
- List of Furthest Airports from IOR
- 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 Inishmore Aerodrome (IOR), Kilronan, Inishmore, Ireland and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 3,769 miles (or 6,065 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 large distance between Inishmore Aerodrome and St. Louis Regional Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Inishmore Aerodrome and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | IOR / EIIM |
| Airport Names: |
|
| Location: | Kilronan, Inishmore, Ireland |
| GPS Coordinates: | 53°6'24"N by 9°39'14"W |
| Area Served: | Inishmore, Aran Islands, County Galway, Ireland |
| Operator/Owner: | Údarás na Gaeltachta Na Forbacha |
| Airport Type: | Private |
| Elevation: | 24 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from IOR |
| More Information: | IOR 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 Inishmore Aerodrome (IOR):
- Because of Inishmore Aerodrome's relatively low elevation of 24 feet, planes can take off or land at Inishmore Aerodrome 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.
- Inishmore Aerodrome (IOR) currently has only 1 runway.
- The closest airport to Inishmore Aerodrome (IOR) is Inishmaan Aerodrome (IIA), which is located only 4 miles (6 kilometers) ESE of IOR.
- The furthest airport from Inishmore Aerodrome (IOR) is Ryan's Creek Aerodrome (SZS), which is located 11,997 miles (19,307 kilometers) away in Stewart Island, New Zealand.
- In addition to being known as "Inishmore Aerodrome", another name for IOR is "Kilronan Airport".
Facts about St. Louis Regional Airport (ALN):
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 3.63 miles (5.84 km) ESE | Inishmaan Aerodrome (IIA) | Inishmaan, Ireland |     |
| 2 | 6.61 miles (10.64 km) ESE | Inisheer Aerodrome (INQ) | Inisheer, Ireland | |
| 3 | 11.51 miles (18.52 km) NE | Connemara Airport (NNR) | Inverin, Ireland | |
| 4 | 32.38 miles (52.11 km) ENE | Galway Airport (GWY) | Galway, Ireland | |
| 5 | 41.31 miles (66.48 km) SE | Shannon Airport (SNN) | Shannon (County Clare), Ireland | |
| 6 | 64.22 miles (103.35 km) S | Kerry Airport (KIR) | Tralee, County Kerry, Ireland | |
| 7 | 65.26 miles (105.02 km) NNE | Ireland West Airport Knock (NOC) | Knock, Ireland | |
| 8 | 78.63 miles (126.54 km) N | Belmullet Aerodrome (BLY) | Belmullet, Ireland | |
| 9 | 91.84 miles (147.79 km) NNE | Sligo Airport (SXL) | Strandhill (near Sligo), Ireland | |
| 10 | 99.62 miles (160.32 km) S | Bantry Aerodrome (BYT) | Bantry, County Cork, Ireland | |
| 11 | 100.20 miles (161.26 km) SSE | Cork Airport (ORK) | Cork, Ireland | |
| 12 | 103.24 miles (166.14 km) ESE | Kilkenny Airport (KKY) | Kilkenny, Ireland | |
| 13 | 121.04 miles (194.80 km) NE | Enniskillen/St Angelo Airport (ENK) | Enniskillen, Co Fermanagh, Northern Ireland, United Kingdom | |
| 14 | 124.96 miles (201.10 km) ESE | Waterford Airport (WAT) | Waterford, Ireland | |
| 15 | 141.51 miles (227.73 km) E | Dublin Airport (DUB) | Dublin, Ireland | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,996.55 miles (19,306.53 km) SSE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,965.47 miles (19,256.51 km) SSE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,940.74 miles (19,216.71 km) S | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,889.53 miles (19,134.30 km) S | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,873.61 miles (19,108.68 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 6 | 11,873.44 miles (19,108.41 km) S | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 7 | 11,855.36 miles (19,079.30 km) S | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,843.88 miles (19,060.83 km) SSE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 9 | 11,827.18 miles (19,033.96 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 10 | 11,801.04 miles (18,991.89 km) S | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 11 | 11,797.47 miles (18,986.14 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 12 | 11,791.39 miles (18,976.35 km) S | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,770.24 miles (18,942.31 km) S | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 14 | 11,764.82 miles (18,933.60 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 15 | 11,718.09 miles (18,858.39 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 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 | |