Nonstop flight route between Yarmouth, Nova Scotia, Canada and St. Mary's, Alaska, United States:
Departure Airport:
(43°49'37"N by 66°5'17"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from YQI to KSM:
3,820.62 miles (6,148.68 km)
Share this route:
Jump to:
- About this route
- YQI Airport Information
- KSM Airport Information
- Facts about YQI
- Facts about KSM
- Map of Nearest Airports to YQI
- List of Nearest Airports to YQI
- Map of Furthest Airports from YQI
- List of Furthest Airports from YQI
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Yarmouth Airport (YQI), Yarmouth, Nova Scotia, Canada and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,821 miles (or 6,149 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 Yarmouth Airport and St. Mary's 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 Yarmouth Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | YQI / CYQI |
| Airport Name: | Yarmouth Airport |
| Location: | Yarmouth, Nova Scotia, Canada |
| GPS Coordinates: | 43°49'37"N by 66°5'17"W |
| Airport Type: | Public |
| Elevation: | 140 feet (43 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YQI |
| More Information: | YQI Maps & Info |
Arrival 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 |
Facts about Yarmouth Airport (YQI):
- The closest airport to Yarmouth Airport (YQI) is Digby/Annapolis Regional Airport (YDG), which is located 52 miles (83 kilometers) NNE of YQI.
- Yarmouth Airport (YQI) has 2 runways.
- Because of Yarmouth Airport's relatively low elevation of 140 feet, planes can take off or land at Yarmouth 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.
- In 1936, the Department of National Defence selected the site as a base for Maritime patrol aircraft.
- On November 11, 1971, an Iberia Airlines 747 jumbo jet en route from Madrid to New York made an emergency landing at the airport due to a bomb threat.
- The furthest airport from Yarmouth Airport (YQI) is Albany Airport (ALH), which is located 11,789 miles (18,972 kilometers) away in Albany, Western Australia, Australia.
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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 51.86 miles (83.47 km) NNE | Digby/Annapolis Regional Airport (YDG) | Digby, Nova Scotia, Canada |     |
| 2 | 98.67 miles (158.79 km) NE | CFB Greenwood (YZX) | Greenwood, Nova Scotia, Canada | |
| 3 | 103.33 miles (166.30 km) N | Saint John Airport (YSJ) | Saint John, New Brunswick, Canada | |
| 4 | 119.55 miles (192.39 km) NW | Princeton Municipal Airport (PNN) | Princeton, Maine, United States | |
| 5 | 120.65 miles (194.16 km) WNW | Hancock County-Bar Harbor Airport (BHB) | Bar Harbor, Maine, United States | |
| 6 | 139.72 miles (224.85 km) ENE | Shearwater Heliport (YAW) | Shearwater, Nova Scotia, Canada | |
| 7 | 139.96 miles (225.24 km) N | 5th Canadian Division Support Base Gagetown, (YCX) | Gagetown, New Brunswick, Canada | |
| 8 | 142.77 miles (229.76 km) N | Fredericton International Airport (YFC) | Fredericton, New Brunswick, Canada | |
| 9 | 146.65 miles (236.02 km) ENE | Halifax Stanfield International Airport (YHZ) | Enfield, Nova Scotia, Canada | |
| 10 | 149.48 miles (240.57 km) WNW | Old Town Municipal Airport (OLD) | Old Town, Maine, United States | |
| 11 | 150.64 miles (242.43 km) W | Knox County Regional Airport (RKD) | Rockland, Maine, United States | |
| 12 | 151.41 miles (243.67 km) WNW | Bangor International Airport (BGR) | Bangor, Maine, United States | |
| 13 | 172.50 miles (277.61 km) NNE | Greater Moncton International Airport (YQM) | Moncton, New Brunswick, Canada | |
| 14 | 179.07 miles (288.18 km) NW | Millinocket Municipal Airport (MLT) | Millinocket, Maine, United States | |
| 15 | 179.14 miles (288.30 km) NNW | Houlton International Airport (HUL) | Houlton, Maine, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,788.87 miles (18,972.29 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,765.47 miles (18,934.64 km) S | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,750.01 miles (18,909.76 km) S | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 11,731.65 miles (18,880.22 km) S | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,708.77 miles (18,843.40 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 6 | 11,708.62 miles (18,843.15 km) S | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 7 | 11,619.35 miles (18,699.49 km) S | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,617.47 miles (18,696.46 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 9 | 11,615.32 miles (18,693.00 km) S | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 10 | 11,607.96 miles (18,681.15 km) S | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 11 | 11,500.29 miles (18,507.88 km) S | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,468.41 miles (18,456.56 km) SSW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 11,446.09 miles (18,420.65 km) SSW | Kalgoorlie-Boulder Airport (KGI) | Kalgoorlie, Western Australia, Australia | |
| 14 | 11,437.36 miles (18,406.60 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,419.58 miles (18,377.98 km) S | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 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 | |