Nonstop flight route between Benson, Oxfordshire, England, United Kingdom and Salmon, Idaho, United States:
Departure Airport:
(51°36'59"N by 1°5'44"W)
Arrival Airport:
(45°7'26"N by 113°52'53"W)
Distance from BEX to SMN:
4,650.41 miles (7,484.09 km)
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Jump to:
- About this route
- BEX Airport Information
- SMN Airport Information
- Facts about BEX
- Facts about SMN
- Map of Nearest Airports to BEX
- List of Nearest Airports to BEX
- Map of Furthest Airports from BEX
- List of Furthest Airports from BEX
- Map of Nearest Airports to SMN
- List of Nearest Airports to SMN
- Map of Furthest Airports from SMN
- List of Furthest Airports from SMN
About this route:
A direct, nonstop flight between RAF Benson (BEX), Benson, Oxfordshire, England, United Kingdom and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 4,650 miles (or 7,484 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 RAF Benson and Lemhi County 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 RAF Benson and Lemhi County Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | SMN / KSMN |
| Airport Name: | Lemhi County Airport |
| Location: | Salmon, Idaho, United States |
| GPS Coordinates: | 45°7'26"N by 113°52'53"W |
| Operator/Owner: | Lemhi County |
| Airport Type: | Public |
| Elevation: | 4043 feet (1,232 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SMN |
| More Information: | SMN Maps & Info |
Facts about RAF Benson (BEX):
- 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.
- Royal Air Force Benson or RAF Benson is a Royal Air Force station near Benson in South Oxfordshire, England.
- The station is today the home to four squadrons of Support Helicopters, 28 Squadron, 78 Squadron with Merlin helicopters and 33 Squadron and 230 Squadron with Puma helicopters.
- The King's Flight moved from RAF Hendon and would stay until after the war, moving to RAF Northolt in 1995.
- The closest airport to RAF Benson (BEX) is RAF High Wycombe (HYC), which is located only 13 miles (22 kilometers) ENE of BEX.
- The airfield is a well-known frost hollow, often recording the coldest temperatures in the UK.
Facts about Lemhi County Airport (SMN):
- The furthest airport from Lemhi County Airport (SMN) is Tôlanaro Airport (FTU), which is located 10,686 miles (17,197 kilometers) away in Tôlanaro, Madagascar.
- Because of Lemhi County Airport's high elevation of 4,043 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SMN. Combined with a high temperature, this could make SMN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of SMN.
- Lemhi County Airport (SMN) currently has only 1 runway.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 44.63 miles (71.83 km) SSW | Challis Airport (CHL) | Challis, Idaho, United States | |
| 2 | 65.34 miles (105.16 km) E | Dillon Airport (DLN) | Dillon, Montana, United States | |
| 3 | 88.21 miles (141.95 km) NE | Bert Mooney Airport (BTM) | Butte, Montana, United States | |
| 4 | 105.26 miles (169.40 km) SE | Dubois Municipal Airport (DBS) | Dubois, Idaho, United States | |
| 5 | 109.67 miles (176.50 km) W | McCall Municipal Airport (MYL) | McCall, Idaho, United States | |
| 6 | 113.79 miles (183.12 km) S | Friedman Memorial Airport (SUN) | Hailey, Idaho, United States | |
| 7 | 124.26 miles (199.97 km) N | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| 8 | 137.25 miles (220.89 km) NE | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 9 | 138.54 miles (222.96 km) ESE | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 10 | 139.78 miles (224.96 km) ENE | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 11 | 142.78 miles (229.79 km) SE | Idaho Falls Regional Airport (IDA) | Idaho Falls, Idaho, United States | |
| 12 | 158.08 miles (254.41 km) SW | Boise Airport (BOI) | Boise, Idaho, United States | |
| 13 | 165.78 miles (266.79 km) SSE | Pocatello Regional Airport (PIH) | Pocatello, Idaho, United States | |
| 14 | 171.20 miles (275.52 km) ENE | Mission Field (LVM) | Livingston, Montana, United States | |
| 15 | 171.98 miles (276.77 km) WSW | Ontario Municipal Airport (ONO) | Ontario, Oregon, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,685.72 miles (17,196.96 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,683.63 miles (17,193.59 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,677.06 miles (17,183.01 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 4 | 10,664.05 miles (17,162.08 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,656.97 miles (17,150.68 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,588.72 miles (17,040.86 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,500.49 miles (16,898.86 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,477.32 miles (16,861.57 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,388.70 miles (16,718.95 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,384.71 miles (16,712.53 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,371.80 miles (16,691.75 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,336.41 miles (16,634.79 km) SSE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,326.44 miles (16,618.75 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,311.65 miles (16,594.95 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,289.81 miles (16,559.81 km) SE | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |