Nonstop flight route between Salmon, Idaho, United States and Hatfield, Hertfordshire, England, United Kingdom:
Departure Airport:
(45°7'26"N by 113°52'53"W)
Arrival Airport:
(51°45'56"N by 0°15'2"W)
Distance from SMN to HTF:
4,668.48 miles (7,513.16 km)
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Jump to:
- About this route
- SMN Airport Information
- HTF Airport Information
- Facts about SMN
- Facts about HTF
- Map of Nearest Airports to SMN
- List of Nearest Airports to SMN
- Map of Furthest Airports from SMN
- List of Furthest Airports from SMN
- Map of Nearest Airports to HTF
- List of Nearest Airports to HTF
- Map of Furthest Airports from HTF
- List of Furthest Airports from HTF
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Hatfield Aerodrome (HTF), Hatfield, Hertfordshire, England, United Kingdom would travel a Great Circle distance of 4,668 miles (or 7,513 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 Lemhi County Airport and Hatfield Aerodrome, 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 Lemhi County Airport and Hatfield Aerodrome. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | HTF / EGTH |
| Airport Name: | Hatfield Aerodrome |
| Location: | Hatfield, Hertfordshire, England, United Kingdom |
| GPS Coordinates: | 51°45'56"N by 0°15'2"W |
| Operator/Owner: | de Havilland Aircraft Company (1930 - 1960) Hawker Siddeley (1960 - 1977) British Aerospace (1977 - closure) |
| Airport Type: | Private |
| Elevation: | 254 feet (77 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from HTF |
| More Information: | HTF Maps & Info |
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.
- 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.
- 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.
Facts about Hatfield Aerodrome (HTF):
- Hatfield Aerodrome (HTF) has 2 runways.
- The 146 first flew in 1981 and production of some components, final assembly and flight testing of the first two series of the aircraft was based at Hatfield during the early and mid 1980s.
- Because of Hatfield Aerodrome's relatively low elevation of 254 feet, planes can take off or land at Hatfield Aerodrome 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 redevelopment of the main airfield site commenced in the late 1990s.
- A hard runway was laid in 1947.
- The closest airport to Hatfield Aerodrome (HTF) is London Luton Airport (LTN), which is located only 9 miles (15 kilometers) NNW of HTF.
- The furthest airport from Hatfield Aerodrome (HTF) is Chatham Islands (CHT), which is located 11,860 miles (19,086 kilometers) away in Waitangi, Chatham Islands, 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9.04 miles (14.55 km) NNW | London Luton Airport (LTN) | Luton (near London), England, United Kingdom | |
| 2 | 16.36 miles (26.33 km) SSW | RAF Northolt (NHT) | Ruislip, England, United Kingdom | |
| 3 | 21.87 miles (35.20 km) SSW | London Heathrow Airport (LHR) | London, England, United Kingdom | |
| 4 | 22.28 miles (35.86 km) SE | London City Airport (LCY) | London, England, United Kingdom | |
| 5 | 22.32 miles (35.92 km) ENE | London Stansted Airport (STN) | Essex (near London), England, United Kingdom | |
| 6 | 24.30 miles (39.10 km) WSW | RAF High Wycombe (HYC) | High Wycombe, Buckinghamshire, England, United Kingdom | |
| 7 | 27.75 miles (44.66 km) NE | Duxford Aerodrome (QFO) | Duxford, England, United Kingdom | |
| 8 | 28.81 miles (46.36 km) NW | Milton Keynes Airport (KYN) | Milton Keynes, England, United Kingdom | |
| 9 | 32.43 miles (52.19 km) SSE | London Biggin Hill Airport (BQH) | Biggin Hill / London, England, United Kingdom | |
| 10 | 35.34 miles (56.88 km) NNE | Cambridge International Airport (CBG) | Cambridge, England, United Kingdom | |
| 11 | 35.34 miles (56.88 km) ENE | MDPGA Wethersfield (WXF) | Braintree, England, United Kingdom | |
| 12 | 37.64 miles (60.57 km) WSW | RAF Benson (BEX) | Benson, Oxfordshire, England, United Kingdom | |
| 13 | 38.46 miles (61.89 km) S | Redhill Aerodrome (KRH) | Redhill, Surrey, England, United Kingdom | |
| 14 | 39.87 miles (64.17 km) SW | Blackbushe Airport (BBS) | Yateley, Hampshire, England, United Kingdom | |
| 15 | 40.76 miles (65.60 km) SW | Farnborough Airport (FAB) | Farnborough, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,859.79 miles (19,086.43 km) SSW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,845.00 miles (19,062.63 km) SE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 3 | 11,822.22 miles (19,025.98 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 4 | 11,814.95 miles (19,014.28 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,801.88 miles (18,993.23 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 11,788.88 miles (18,972.32 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 11,781.59 miles (18,960.59 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 8 | 11,781.02 miles (18,959.67 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 9 | 11,774.26 miles (18,948.79 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 11,752.23 miles (18,913.34 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,750.89 miles (18,911.18 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,735.19 miles (18,885.91 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,730.22 miles (18,877.91 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,727.56 miles (18,873.63 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,707.00 miles (18,840.55 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |