Nonstop flight route between Boston, Massachusetts, United States and St. Mary's, Alaska, United States:
Departure Airport:
(42°21'47"N by 71°0'23"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from BOS to KSM:
3,762.09 miles (6,054.48 km)
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Jump to:
- About this route
- BOS Airport Information
- KSM Airport Information
- Facts about BOS
- Facts about KSM
- Map of Nearest Airports to BOS
- List of Nearest Airports to BOS
- Map of Furthest Airports from BOS
- List of Furthest Airports from BOS
- 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 Boston Logan International Airport (BOS), Boston, Massachusetts, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,762 miles (or 6,054 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 Boston Logan International 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 Boston Logan International 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: | BOS / KBOS |
| Airport Name: | Boston Logan International Airport |
| Location: | Boston, Massachusetts, United States |
| GPS Coordinates: | 42°21'47"N by 71°0'23"W |
| Area Served: | Boston, Massachusetts, US |
| Operator/Owner: | Massachusetts Port Authority (Massport) |
| Airport Type: | Public |
| Elevation: | 20 feet (6 meters) |
| # of Runways: | 6 |
| View all routes: | Routes from BOS |
| More Information: | BOS 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 Boston Logan International Airport (BOS):
- In October 2009 US Airways announced it would close its Boston crew base in May 2010.
- The closest airport to Boston Logan International Airport (BOS) is Norwood Memorial Airport (OWD), which is located only 15 miles (24 kilometers) SW of BOS.
- Boston Logan International Airport handled 3,021,863 passengers last year.
- As of 2010, Logan is the 19th busiest airport in the United States with about 13.5 million boardings a year.
- The airport serves as a focus city for JetBlue Airways, as well as a hub for regional airline Cape Air and for commuter airline PenAir.
- Runway 14/32, which officially opened to air traffic on November 23, 2006, is unidirectional.
- Boston Logan International Airport (BOS) has 6 runways.
- The furthest airport from Boston Logan International Airport (BOS) is Margaret River Airport (MGV), which is located 11,767 miles (18,937 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Boston Logan International Airport's relatively low elevation of 20 feet, planes can take off or land at Boston Logan International 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 March 1947 diagram shows 7,000 ft runway 4 in use, with runways 9 and 33 under construction.
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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 14.65 miles (23.58 km) SW | Norwood Memorial Airport (OWD) | Norwood, Massachusetts, United States |     |
| 2 | 15.95 miles (25.67 km) NNE | Beverly Municipal Airport (BVY) | Beverly, Massachusetts, United States | |
| 3 | 16.19 miles (26.06 km) WNW | Laurence G. Hanscom Field (BED) | Bedford, Massachusetts, United States | |
| 4 | 25.18 miles (40.53 km) NNW | Lawrence Municipal Airport (LWM) | Lawrence, Massachusetts, United States | |
| 5 | 33.67 miles (54.18 km) WNW | Moore Army Airfield (AYE) | Leominster, Massachusetts, United States | |
| 6 | 34.45 miles (55.44 km) SSE | Plymouth Municipal Airport (PYM) | Plymouth, Massachusetts, United States | |
| 7 | 38.80 miles (62.44 km) NW | Nashua Airport (ASH) | Nashua, New Hampshire, United States | |
| 8 | 39.38 miles (63.38 km) SW | North Central State Airport (SFZ) | Pawtucket, Rhode Island, United States | |
| 9 | 44.91 miles (72.28 km) W | Worcester Regional Airport (ORH) | Worcester, Massachusetts, United States | |
| 10 | 44.92 miles (72.30 km) ESE | Provincetown Municipal Airport (PVC) | Provincetown, Massachusetts, United States | |
| 11 | 44.99 miles (72.40 km) NNW | Manchester–Boston Regional Airport (MHT) | Manchester, New Hampshire, United States | |
| 12 | 47.53 miles (76.49 km) S | New Bedford Regional Airport (EWB) | New Bedford, Massachusetts, United States | |
| 13 | 49.18 miles (79.15 km) SSW | T. F. Green Airport (PVD) | Providence, Rhode Island, United States | |
| 14 | 50.27 miles (80.90 km) N | Portsmouth International Airport at Pease (PSM) | Portsmouth, New Hampshire, United States | |
| 15 | 53.07 miles (85.40 km) WNW | Gardner Municipal Airport (GDM) | Gardner, Massachusetts, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,766.73 miles (18,936.67 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,756.83 miles (18,920.74 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,743.82 miles (18,899.80 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 11,738.26 miles (18,890.84 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 5 | 11,717.46 miles (18,857.37 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,675.78 miles (18,790.29 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,636.27 miles (18,726.71 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,633.35 miles (18,722.01 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,621.38 miles (18,702.75 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,538.48 miles (18,569.33 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,518.25 miles (18,536.78 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 11,446.67 miles (18,421.58 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,446.58 miles (18,421.44 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 11,410.08 miles (18,362.69 km) SSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,408.09 miles (18,359.49 km) SW | Windarling Airport (WRN) | Windarling, 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 | |