Nonstop flight route between St. Mary's, Alaska, United States and Benson, Oxfordshire, England, United Kingdom:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(51°36'59"N by 1°5'44"W)
Distance from KSM to BEX:
4,522.10 miles (7,277.59 km)
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Jump to:
- About this route
- KSM Airport Information
- BEX Airport Information
- Facts about KSM
- Facts about BEX
- 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 BEX
- List of Nearest Airports to BEX
- Map of Furthest Airports from BEX
- List of Furthest Airports from BEX
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and RAF Benson (BEX), Benson, Oxfordshire, England, United Kingdom would travel a Great Circle distance of 4,522 miles (or 7,278 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 RAF Benson, 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 RAF Benson. 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: | BEX / EGUB |
| Airport Name: | RAF Benson |
| Location: | Benson, Oxfordshire, England, United Kingdom |
| GPS Coordinates: | 51°36'59"N by 1°5'44"W |
| Operator/Owner: | Ministry of Defence |
| View all routes: | Routes from BEX |
| More Information: | BEX Maps & Info |
Facts about St. Mary's Airport (KSM):
- 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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
Facts about RAF Benson (BEX):
- The station retained a reconnaissance role for some years after the war, with Avro Lancaster, Spitfire, Mosquito, Gloster Meteor PR.Mk 10 and English Electric Canberra PR.Mk 3 aircraft.
- The closest airport to RAF Benson (BEX) is RAF High Wycombe (HYC), which is located only 13 miles (22 kilometers) ENE of BEX.
- The future of RAF Benson was in doubt for some time, while Project Belvedere was looking into closing at least one of Joint Helicopter Command's airfields.
- The furthest airport from RAF Benson (BEX) is Dunedin International Airport (DUD), which is located 11,879 miles (19,118 kilometers) away in Dunedin, Otago, New Zealand.
- The Chiltern Air Support Unit helicopter and the Thames Valley and Chiltern Air Ambulance helicopter are also both located here as lodger units.
| 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 | 13.38 miles (21.53 km) ENE | RAF High Wycombe (HYC) | High Wycombe, Buckinghamshire, England, United Kingdom | |
| 2 | 18.01 miles (28.98 km) NNW | Oxford Airport (OXF) | Oxford, England, United Kingdom | |
| 3 | 22.84 miles (36.76 km) WNW | RAF Brize Norton (BZZ) | Oxfordshire, England, United Kingdom | |
| 4 | 22.86 miles (36.79 km) SSE | Blackbushe Airport (BBS) | Yateley, Hampshire, England, United Kingdom | |
| 5 | 27.22 miles (43.81 km) SSE | RAF Odiham (ODH) | Odiham, United Kingdom | |
| 6 | 27.27 miles (43.88 km) SSE | Farnborough Airport (FAB) | Farnborough, United Kingdom | |
| 7 | 28.90 miles (46.51 km) ESE | London Heathrow Airport (LHR) | London, England, United Kingdom | |
| 8 | 29.41 miles (47.34 km) E | RAF Northolt (NHT) | Ruislip, England, United Kingdom | |
| 9 | 29.77 miles (47.92 km) S | Lasham Airfield (QLA) | Lasham, England, United Kingdom | |
| 10 | 30.10 miles (48.45 km) W | RAF Fairford (FFD) | Fairford, England, United Kingdom | |
| 11 | 32.59 miles (52.45 km) NNE | Milton Keynes Airport (KYN) | Milton Keynes, England, United Kingdom | |
| 12 | 35.88 miles (57.74 km) ENE | London Luton Airport (LTN) | Luton (near London), England, United Kingdom | |
| 13 | 37.64 miles (60.57 km) ENE | Hatfield Aerodrome (HTF) | Hatfield, Hertfordshire, England, United Kingdom | |
| 14 | 39.31 miles (63.26 km) W | RAF Lyneham (LYE) | Wiltshire, England, United Kingdom | |
| 15 | 47.38 miles (76.26 km) SSW | Southampton Airport (SOU) | Eastleigh (near Southampton), England, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,879.28 miles (19,117.81 km) SE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 11,856.22 miles (19,080.68 km) SSW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 3 | 11,854.23 miles (19,077.49 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 4 | 11,851.63 miles (19,073.31 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,838.05 miles (19,051.45 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 11,819.81 miles (19,022.09 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 11,815.78 miles (19,015.60 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 8 | 11,810.58 miles (19,007.24 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 9 | 11,802.08 miles (18,993.57 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 11,785.98 miles (18,967.65 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,785.41 miles (18,966.73 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,767.06 miles (18,937.19 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,759.25 miles (18,924.64 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 14 | 11,754.85 miles (18,917.55 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 15 | 11,740.74 miles (18,894.85 km) SE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |