Nonstop flight route between St. Mary's, Alaska, United States and Umiujaq, Quebec, Canada:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(56°32'9"N by 76°31'5"W)
Distance from KSM to YUD:
2,852.17 miles (4,590.11 km)
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Jump to:
- About this route
- KSM Airport Information
- YUD Airport Information
- Facts about KSM
- Facts about YUD
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to YUD
- List of Nearest Airports to YUD
- Map of Furthest Airports from YUD
- List of Furthest Airports from YUD
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Umiujaq Airport (YUD), Umiujaq, Quebec, Canada would travel a Great Circle distance of 2,852 miles (or 4,590 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 St. Mary's Airport and Umiujaq 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 St. Mary's Airport and Umiujaq Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | YUD / CYMU |
| Airport Name: | Umiujaq Airport |
| Location: | Umiujaq, Quebec, Canada |
| GPS Coordinates: | 56°32'9"N by 76°31'5"W |
| Operator/Owner: | Administration régionale Kativik |
| Airport Type: | Public |
| Elevation: | 251 feet (77 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YUD |
| More Information: | YUD Maps & Info |
Facts about St. Mary's Airport (KSM):
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- St. Mary's Airport (KSM) has 2 runways.
Facts about Umiujaq Airport (YUD):
- The furthest airport from Umiujaq Airport (YUD) is Albany Airport (ALH), which is located 10,800 miles (17,381 kilometers) away in Albany, Western Australia, Australia.
- Because of Umiujaq Airport's relatively low elevation of 251 feet, planes can take off or land at Umiujaq 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 Umiujaq Airport (YUD) is Kuujjuarapik Airport (YGW), which is located 99 miles (160 kilometers) SSW of YUD.
- Umiujaq Airport (YUD) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States |     |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 99.20 miles (159.64 km) SSW | Kuujjuarapik Airport (YGW) | Kuujjuarapik, Quebec, Canada | |
| 2 | 104.07 miles (167.48 km) W | Sanikiluaq Airport (YSK) | Sanikiluaq, Nunavut, Canada | |
| 3 | 145.72 miles (234.51 km) NNW | Inukjuak Airport (YPH) | Inukjuak, Quebec, Canada | |
| 4 | 205.22 miles (330.27 km) S | La Grande-3 Airport (YAR) | Northern Quebec, Canada | |
| 5 | 206.51 miles (332.34 km) SSW | La Grande Rivière Airport (YGL) | Radisson, Quebec, Canada | |
| 6 | 211.03 miles (339.61 km) SSW | Chisasibi Airport (YKU) | Chisasibi, Quebec, Canada | |
| 7 | 222.52 miles (358.11 km) SSE | La Grande-4 Airport (YAH) | Northern Quebec, Canada | |
| 8 | 244.54 miles (393.54 km) N | Puvirnituq Airport (YPX) | Puvirnituq, Quebec, Canada | |
| 9 | 249.72 miles (401.88 km) ESE | Fontages Airport (YFG) | Fontanges, Quebec, Canada | |
| 10 | 260.41 miles (419.09 km) SSW | Wemindji Airport (YNC) | Wemindji, Quebec, Canada | |
| 11 | 283.92 miles (456.93 km) NE | Tasiujaq Airport (YTQ) | Tasiujaq, Quebec, Canada | |
| 12 | 301.61 miles (485.39 km) N | Akulivik Airport (AKV) | Akulivik, Quebec, Canada | |
| 13 | 308.47 miles (496.43 km) SSW | Eastmain River Airport (ZEM) | Eastmain, Quebec, Canada | |
| 14 | 317.31 miles (510.66 km) NE | Aupaluk Airport (YPJ) | Aupaluk, Quebec, Canada | |
| 15 | 320.46 miles (515.73 km) ENE | Kuujjuaq Airport (YVP) | Kuujjuaq, Quebec, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,800.29 miles (17,381.34 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 10,786.17 miles (17,358.62 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,780.99 miles (17,350.28 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 10,760.12 miles (17,316.69 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 10,735.17 miles (17,276.53 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,722.08 miles (17,255.48 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,646.84 miles (17,134.39 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,646.14 miles (17,133.25 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 10,635.06 miles (17,115.42 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 10 | 10,635.02 miles (17,115.36 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 11 | 10,539.44 miles (16,961.54 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,480.42 miles (16,866.57 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 10,457.49 miles (16,829.65 km) SSW | Kalgoorlie-Boulder Airport (KGI) | Kalgoorlie, Western Australia, Australia | |
| 14 | 10,451.43 miles (16,819.91 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,449.46 miles (16,816.73 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |