Nonstop flight route between Alton, Illinois, United States and Hay River, Northwest Territories, Canada:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(60°50'22"N by 115°46'58"W)
Distance from ALN to YHY:
1,875.22 miles (3,017.86 km)
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Jump to:
- About this route
- ALN Airport Information
- YHY Airport Information
- Facts about ALN
- Facts about 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
- Map of Nearest Airports to YHY
- List of Nearest Airports to YHY
- Map of Furthest Airports from YHY
- List of Furthest Airports from YHY
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Hay River/Merlyn Carter Airport (YHY), Hay River, Northwest Territories, Canada 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 St. Louis Regional Airport and Hay River/Merlyn Carter 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: | 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 |
Facts about St. Louis Regional Airport (ALN):
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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 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.
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 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.
- 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.
| 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 | 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 | |