Nonstop flight route between Sachs Harbour, Northwest Territories, Canada and Alton, Illinois, United States:
Departure Airport:
(71°59'36"N by 125°14'29"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from YSY to ALN:
2,588.73 miles (4,166.14 km)
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Jump to:
- About this route
- YSY Airport Information
- ALN Airport Information
- Facts about YSY
- Facts about ALN
- Map of Nearest Airports to YSY
- List of Nearest Airports to YSY
- Map of Furthest Airports from YSY
- List of Furthest Airports from YSY
- 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY), Sachs Harbour, Northwest Territories, Canada and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 2,589 miles (or 4,166 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport 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: | YSY / CYSY |
| Airport Name: | Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport |
| Location: | Sachs Harbour, Northwest Territories, Canada |
| GPS Coordinates: | 71°59'36"N by 125°14'29"W |
| Operator/Owner: | Government of the Northwest Territories |
| Airport Type: | Public |
| Elevation: | 283 feet (86 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YSY |
| More Information: | YSY 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY):
- The furthest airport from Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY) is Teniente Rodolfo Marsh Airport (TNM), which is located 9,780 miles (15,739 kilometers) away in Villa Las Estrellas, Antarctica.
- Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY) currently has only 1 runway.
- Because of Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport's relatively low elevation of 283 feet, planes can take off or land at Sachs Harbour (David Nasogaluak Jr. Saaryuaq) 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY) is Paulatuk (Nora Aliqatchialuk Ruben) Airport (YPC), which is located 184 miles (296 kilometers) S of YSY.
Facts about St. Louis Regional Airport (ALN):
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 183.86 miles (295.89 km) S | Paulatuk (Nora Aliqatchialuk Ruben) Airport (YPC) | Paulatuk, Northwest Territories, Canada |     |
| 2 | 184.61 miles (297.10 km) ESE | Ulukhaktok/Holman Airport (YHI) | Ulukhaktok, Northwest Territories, Canada | |
| 3 | 250.36 miles (402.91 km) SW | Tuktoyaktuk/James Gruben Airport (YUB) | Tuktoyaktuk, Northwest Territories, Canada | |
| 4 | 313.63 miles (504.74 km) NNE | Mould Bay Airport (YMD) | Mould Bay, Northwest Territories, Canada | |
| 5 | 319.40 miles (514.03 km) SW | Inuvik (Mike Zubko) Airport (YEV) | Inuvik, Northwest Territories, Canada | |
| 6 | 344.23 miles (553.98 km) S | Colville Lake/Tommy Kochon Airport (YCK) | Colville Lake, Northwest Territories, Canada | |
| 7 | 346.39 miles (557.45 km) SW | Aklavik/Freddie Carmichael Airport (LAK) | Aklavik, Northwest Territories, Canada | |
| 8 | 374.19 miles (602.20 km) SE | Kugluktuk Airport (YCO) | Kugluktuk, Nunavut, Canada | |
| 9 | 390.93 miles (629.14 km) SW | Fort McPherson Airport (ZFM) | Fort McPherson, Northwest Territories, Canada | |
| 10 | 406.09 miles (653.54 km) SSW | Fort Good Hope Airport (YGH) | Fort Good Hope, Northwest Territories, Canada | |
| 11 | 428.88 miles (690.22 km) W | Barter Island LRRS Airport (BTI) | Barter Island, Alaska, United States | |
| 12 | 461.48 miles (742.68 km) SW | Old Crow Airport (YOC) | Old Crow, Yukon, Canada | |
| 13 | 465.38 miles (748.96 km) S | Norman Wells Airport (YVQ) | Norman Wells, Northwest Territories, Canada | |
| 14 | 470.78 miles (757.64 km) S | Déline Airport (YWJ) | Deline, Northwest Territories, Canada | |
| 15 | 489.52 miles (787.80 km) S | Tulita Airport (ZFN) | Tulita, Northwest Territories, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9,779.94 miles (15,739.26 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 2 | 9,608.47 miles (15,463.30 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 9,595.88 miles (15,443.03 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 9,572.58 miles (15,405.54 km) SE | East London Airport (ELS) | East London, South Africa | |
| 5 | 9,565.59 miles (15,394.28 km) SE | George Airport (GRJ) | George, South Africa | |
| 6 | 9,506.71 miles (15,299.52 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 7 | 9,482.19 miles (15,260.07 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 9,454.70 miles (15,215.82 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 9,378.59 miles (15,093.34 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 10 | 9,372.95 miles (15,084.26 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 11 | 9,369.82 miles (15,079.23 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 12 | 9,359.26 miles (15,062.24 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 9,357.16 miles (15,058.85 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 9,346.91 miles (15,042.35 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 9,333.33 miles (15,020.50 km) SSE | 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 | |