Nonstop flight route between Hay River, Northwest Territories, Canada and Alton, Illinois, United States:
Departure Airport:
(60°50'22"N by 115°46'58"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from YHY to ALN:
1,875.22 miles (3,017.86 km)
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- About this route
- YHY Airport Information
- ALN Airport Information
- Facts about YHY
- Facts about ALN
- Map of Nearest Airports to YHY
- List of Nearest Airports to YHY
- Map of Furthest Airports from YHY
- List of Furthest Airports from YHY
- 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 Hay River/Merlyn Carter Airport (YHY), Hay River, Northwest Territories, Canada and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,875 miles (or 3,018 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 Hay River/Merlyn Carter 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: | YHY / CYHY |
| Airport Name: | Hay River/Merlyn Carter Airport |
| Location: | Hay River, Northwest Territories, Canada |
| GPS Coordinates: | 60°50'22"N by 115°46'58"W |
| Operator/Owner: | Government of the Northwest Territories |
| Airport Type: | Public |
| Elevation: | 541 feet (165 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YHY |
| More Information: | YHY 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 Hay River/Merlyn Carter Airport (YHY):
- Because of Hay River/Merlyn Carter Airport's relatively low elevation of 541 feet, planes can take off or land at Hay River/Merlyn Carter 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 Hay River/Merlyn Carter Airport (YHY) is Fort Resolution Airport (YFR), which is located 74 miles (119 kilometers) ENE of YHY.
- The furthest airport from Hay River/Merlyn Carter Airport (YHY) is Port Alfred Airport (AFD), which is located 9,926 miles (15,974 kilometers) away in Port Alfred, South Africa.
- Hay River/Merlyn Carter Airport (YHY) 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 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 | 73.94 miles (119.00 km) ENE | Fort Resolution Airport (YFR) | Fort Resolution, Northwest Territories, Canada |     |
| 2 | 120.49 miles (193.92 km) NNE | Yellowknife Airport (YZF) | Yellowknife, Northwest Territories, Canada | |
| 3 | 142.02 miles (228.56 km) ESE | Fort Smith Airport (YSM) | Fort Smith, Northwest Territories, Canada | |
| 4 | 160.62 miles (258.50 km) SSW | High Level Airport (YOJ) | High Level, Alberta, Canada | |
| 5 | 165.31 miles (266.05 km) NNW | Whatì Airport (YLE) | Lac La Martre, Northwest Territories, Canada | |
| 6 | 191.74 miles (308.58 km) WNW | Fort Simpson Airport (YFS) | Fort Simpson, Northwest Territories, Canada | |
| 7 | 205.67 miles (331.00 km) SW | Rainbow Lake Airport (YOP) | Rainbow Lake, Alberta, Canada | |
| 8 | 216.21 miles (347.95 km) SE | Fort Chipewyan Airport (YPY) | Fort Chipewyan, Alberta, Canada | |
| 9 | 231.55 miles (372.64 km) NNW | Gamèti/Rae Lakes Airport (YRA) | Gamèti (formerly Rae Lakes), Northwest Territories, Canada | |
| 10 | 251.36 miles (404.53 km) ENE | Fort Reliance Water Aerodrome (YFL) | Fort Reliance, Northwest Territories, Canada | |
| 11 | 264.39 miles (425.50 km) W | Fort Liard Airport (YJF) | Fort Liard, Northwest Territories, Canada | |
| 12 | 265.64 miles (427.51 km) ESE | Uranium City Airport (YBE) | Uranium City, Saskatchewan, Canada | |
| 13 | 273.89 miles (440.77 km) WSW | Northern Rockies Regional Airport (YYE) | Fort Nelson, British Columbia, Canada | |
| 14 | 276.53 miles (445.03 km) SE | Cluff Lake Airport (XCL) | Cluff Lake, Saskatchewan, Canada | |
| 15 | 296.95 miles (477.90 km) NW | Wrigley Airport (YWY) | Wrigley, Northwest Territories, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9,925.99 miles (15,974.30 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 9,921.59 miles (15,967.22 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 3 | 9,914.85 miles (15,956.37 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 9,857.84 miles (15,864.62 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 9,854.97 miles (15,860.00 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 9,831.59 miles (15,822.38 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 7 | 9,819.86 miles (15,803.49 km) ESE | George Airport (GRJ) | George, South Africa | |
| 8 | 9,800.77 miles (15,772.78 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 9,784.14 miles (15,746.01 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 9,774.28 miles (15,730.14 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 11 | 9,771.05 miles (15,724.95 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 9,752.82 miles (15,695.60 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 13 | 9,736.39 miles (15,669.15 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 9,733.39 miles (15,664.34 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 15 | 9,729.51 miles (15,658.09 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 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 | |