Nonstop flight route between Yellowknife, Northwest Territories, Canada and Alton, Illinois, United States:
Departure Airport:
(62°27'47"N by 114°26'25"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from YZF to ALN:
1,922.09 miles (3,093.30 km)
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Jump to:
- About this route
- YZF Airport Information
- ALN Airport Information
- Facts about YZF
- Facts about ALN
- Map of Nearest Airports to YZF
- List of Nearest Airports to YZF
- Map of Furthest Airports from YZF
- List of Furthest Airports from YZF
- 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 Yellowknife Airport (YZF), Yellowknife, Northwest Territories, Canada and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,922 miles (or 3,093 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 Yellowknife 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: | YZF / CYZF |
| Airport Name: | Yellowknife Airport |
| Location: | Yellowknife, Northwest Territories, Canada |
| GPS Coordinates: | 62°27'47"N by 114°26'25"W |
| Airport Type: | Public |
| Elevation: | 675 feet (206 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YZF |
| More Information: | YZF 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 Yellowknife Airport (YZF):
- The closest airport to Yellowknife Airport (YZF) is Fort Resolution Airport (YFR), which is located 92 miles (148 kilometers) SSE of YZF.
- Because of Yellowknife Airport's relatively low elevation of 675 feet, planes can take off or land at Yellowknife 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.
- Yellowknife Airport is located in Yellowknife, Northwest Territories, Canada.
- The furthest airport from Yellowknife Airport (YZF) is Port Alfred Airport (AFD), which is located 9,830 miles (15,819 kilometers) away in Port Alfred, South Africa.
- Yellowknife Airport (YZF) has 2 runways.
- Canadian NORAD Region Forward Operating Location Yellowknife is located south-west of the airstrip.
Facts about St. Louis Regional Airport (ALN):
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 91.91 miles (147.92 km) SSE | Fort Resolution Airport (YFR) | Fort Resolution, Northwest Territories, Canada |     |
| 2 | 99.93 miles (160.82 km) WNW | Whatì Airport (YLE) | Lac La Martre, Northwest Territories, Canada | |
| 3 | 120.49 miles (193.92 km) SSW | Hay River/Merlyn Carter Airport (YHY) | Hay River, Northwest Territories, Canada | |
| 4 | 144.84 miles (233.09 km) NW | Gamèti/Rae Lakes Airport (YRA) | Gamèti (formerly Rae Lakes), Northwest Territories, Canada | |
| 5 | 168.53 miles (271.22 km) E | Fort Reliance Water Aerodrome (YFL) | Fort Reliance, Northwest Territories, Canada | |
| 6 | 187.78 miles (302.20 km) SSE | Fort Smith Airport (YSM) | Fort Smith, Northwest Territories, Canada | |
| 7 | 224.84 miles (361.84 km) W | Fort Simpson Airport (YFS) | Fort Simpson, Northwest Territories, Canada | |
| 8 | 279.00 miles (449.00 km) SSE | Fort Chipewyan Airport (YPY) | Fort Chipewyan, Alberta, Canada | |
| 9 | 281.03 miles (452.28 km) SSW | High Level Airport (YOJ) | High Level, Alberta, Canada | |
| 10 | 282.64 miles (454.87 km) SE | Uranium City Airport (YBE) | Uranium City, Saskatchewan, Canada | |
| 11 | 288.18 miles (463.77 km) WNW | Wrigley Airport (YWY) | Wrigley, Northwest Territories, Canada | |
| 12 | 322.14 miles (518.44 km) SW | Rainbow Lake Airport (YOP) | Rainbow Lake, Alberta, Canada | |
| 13 | 325.58 miles (523.96 km) SE | Fond-du-Lac Airport (ZFD) | Fond-du-Lac, Saskatchewan, Canada | |
| 14 | 327.41 miles (526.92 km) SSE | Cluff Lake Airport (XCL) | Cluff Lake, Saskatchewan, Canada | |
| 15 | 332.94 miles (535.81 km) NW | Déline Airport (YWJ) | Deline, Northwest Territories, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9,829.74 miles (15,819.40 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 9,823.40 miles (15,809.20 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 3 | 9,821.02 miles (15,805.37 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 9,754.21 miles (15,697.84 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 9,754.20 miles (15,697.82 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 9,731.22 miles (15,660.84 km) ESE | George Airport (GRJ) | George, South Africa | |
| 7 | 9,711.58 miles (15,629.24 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 8 | 9,695.25 miles (15,602.95 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 9,679.55 miles (15,577.69 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 9,663.74 miles (15,552.24 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 9,654.99 miles (15,538.16 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 12 | 9,650.73 miles (15,531.30 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 13 | 9,634.60 miles (15,505.35 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 9,632.08 miles (15,501.30 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 15 | 9,623.29 miles (15,487.15 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 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 | |