Nonstop flight route between Salmon, Idaho, United States and Guernsey, Channel Islands, United Kingdom:
Departure Airport:
(45°7'26"N by 113°52'53"W)
Arrival Airport:
(49°26'4"N by 2°36'6"W)
Distance from SMN to GCI:
4,710.31 miles (7,580.50 km)
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Jump to:
- About this route
- SMN Airport Information
- GCI Airport Information
- Facts about SMN
- Facts about GCI
- 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 GCI
- List of Nearest Airports to GCI
- Map of Furthest Airports from GCI
- List of Furthest Airports from GCI
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Guernsey Airport (GCI), Guernsey, Channel Islands, United Kingdom would travel a Great Circle distance of 4,710 miles (or 7,580 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 Guernsey 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 Lemhi County Airport and Guernsey Airport. 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: | GCI / EGJB |
| Airport Name: | Guernsey Airport |
| Location: | Guernsey, Channel Islands, United Kingdom |
| GPS Coordinates: | 49°26'4"N by 2°36'6"W |
| Area Served: | Guernsey |
| Operator/Owner: | States of Guernsey |
| Airport Type: | Public |
| Elevation: | 336 feet (102 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GCI |
| More Information: | GCI 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.
- 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.
- Lemhi County Airport (SMN) currently has only 1 runway.
- The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of SMN.
Facts about Guernsey Airport (GCI):
- In 1960 there were four grass runways, with lengths ranging from 2,040 ft to 3,060 ft.
- The furthest airport from Guernsey Airport (GCI) is Dunedin International Airport (DUD), which is nearly antipodal to Guernsey Airport (meaning Guernsey Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,024 miles (19,350 kilometers) away in Dunedin, Otago, New Zealand.
- Guernsey Airport (GCI) currently has only 1 runway.
- Guernsey Airport handled 886,396 passengers last year.
- The closest airport to Guernsey Airport (GCI) is Jersey Airport (JER), which is located 24 miles (39 kilometers) SE of GCI.
- Atlantic Airlines operates from Bournemouth carrying mail, and from London Luton bringing in newspapers and DHL parcels.
- Because of Guernsey Airport's relatively low elevation of 336 feet, planes can take off or land at Guernsey 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 | 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 | 24.10 miles (38.78 km) SE | Jersey Airport (JER) | Jersey, Channel Islands, United Kingdom | |
| 2 | 25.58 miles (41.17 km) NE | Alderney Airport (ACI) | Alderney, Channel Islands, United Kingdom | |
| 3 | 52.67 miles (84.77 km) ENE | Cherbourg - Maupertus Airport (CER) | Cherbourg, France | |
| 4 | 61.39 miles (98.80 km) SW | Lannion - Côte de Granit Airport (LAI) | Lannion, France | |
| 5 | 63.06 miles (101.48 km) S | Saint-Brieuc - Armor Airport (SBK) | Saint-Brieuc, France | |
| 6 | 63.12 miles (101.58 km) SSE | Dinard–Pleurtuit–Saint-Malo Airport (DNR) | Dinard, France | |
| 7 | 79.68 miles (128.23 km) SW | Morlaix - Ploujean Airport (MXN) | Morlaix, France | |
| 8 | 95.57 miles (153.81 km) NW | Plymouth City Airport (PLH) | Plymouth, United Kingdom | |
| 9 | 96.75 miles (155.70 km) NNW | Exeter International Airport (EXT) | Exeter, United Kingdom | |
| 10 | 98.61 miles (158.70 km) E | Caen la Mer Airport (CFR) | Caen, France | |
| 11 | 98.85 miles (159.09 km) NNE | Bournemouth Airport (BOH) | Bournemouth, England, United Kingdom | |
| 12 | 102.15 miles (164.40 km) SSE | Rennes–Saint-Jacques Airport (RNS) | Rennes, France | |
| 13 | 107.12 miles (172.39 km) SW | Brest Bretagne Airport (BES) | Brest, France | |
| 14 | 108.45 miles (174.54 km) NE | Bembridge Airport (BBP) | Bembridge, Isle of Wight, United Kingdom | |
| 15 | 118.31 miles (190.41 km) NNE | Southampton Airport (SOU) | Eastleigh (near Southampton), England, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,023.73 miles (19,350.27 km) ESE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 12,009.21 miles (19,326.90 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 3 | 11,978.04 miles (19,276.75 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 4 | 11,974.37 miles (19,270.83 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,971.69 miles (19,266.52 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 6 | 11,967.58 miles (19,259.90 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 7 | 11,965.48 miles (19,256.52 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 8 | 11,961.42 miles (19,250.00 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 9 | 11,951.29 miles (19,233.69 km) SW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 10 | 11,934.17 miles (19,206.14 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,929.34 miles (19,198.36 km) ESE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,922.80 miles (19,187.84 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,919.43 miles (19,182.42 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,915.54 miles (19,176.15 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,895.42 miles (19,143.77 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |