Nonstop flight route between Salmon, Idaho, United States and Freetown, Sierra Leone:
Departure Airport:
(45°7'26"N by 113°52'53"W)
Arrival Airport:
(8°23'39"N by 13°7'41"W)
Distance from SMN to HGS:
6,324.44 miles (10,178.17 km)
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Jump to:
- About this route
- SMN Airport Information
- HGS Airport Information
- Facts about SMN
- Facts about HGS
- 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 HGS
- List of Nearest Airports to HGS
- Map of Furthest Airports from HGS
- List of Furthest Airports from HGS
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Hastings Airport (HGS), Freetown, Sierra Leone would travel a Great Circle distance of 6,324 miles (or 10,178 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 Hastings 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 Hastings 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: | HGS / GFHA |
| Airport Name: | Hastings Airport |
| Location: | Freetown, Sierra Leone |
| GPS Coordinates: | 8°23'39"N by 13°7'41"W |
| Area Served: | Freetown |
| Elevation: | 60 feet (18 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HGS |
| More Information: | HGS Maps & Info |
Facts about Lemhi County Airport (SMN):
- 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.
- 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.
Facts about Hastings Airport (HGS):
- Hastings Airport (HGS) currently has only 1 runway.
- The closest airport to Hastings Airport (HGS) is Lungi International Airport (FNA), which is located only 16 miles (26 kilometers) NNW of HGS.
- Because of Hastings Airport's relatively low elevation of 60 feet, planes can take off or land at Hastings 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 Hastings Airport (HGS) is Ulawa Airport (RNA), which is nearly antipodal to Hastings Airport (meaning Hastings Airport is almost on the exact opposite side of the Earth from Ulawa Airport), and is located 12,088 miles (19,454 kilometers) away in Arona, Ulawa Island, Solomon Islands.
| 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 | 16.01 miles (25.77 km) NNW | Lungi International Airport (FNA) | Freetown, Sierra Leone | |
| 2 | 65.21 miles (104.95 km) SE | Gbangbatok Airport (GBK) | Gbangbatok, Sierra Leone | |
| 3 | 72.76 miles (117.09 km) SE | Sherbro International Airport (BTE) | Bonthe, Sierra Leone | |
| 4 | 88.11 miles (141.81 km) NNW | Conakry International Airport (CKY) | Conakry, Guinea | |
| 5 | 98.52 miles (158.55 km) ESE | Bo Airport (KBS) | Bo, Sierra Leone | |
| 6 | 138.04 miles (222.15 km) ESE | Kenema Airport (KEN) | Kenema, Sierra Leone | |
| 7 | 138.46 miles (222.82 km) NNW | Fria Airport (FIG) | Fria, Guinea | |
| 8 | 139.67 miles (224.78 km) NE | Kabala Airport (KBA) | Kabala, Sierra Leone | |
| 9 | 143.03 miles (230.18 km) E | Yengema Airport (WYE) | Yengema, Kono District, Sierra Leone | |
| 10 | 194.24 miles (312.59 km) NNW | Boké Baralande Airport (BKJ) | Boké, Guinea | |
| 11 | 196.80 miles (316.71 km) NE | Faranah Airport (FAA) | Faranah, Guinea | |
| 12 | 198.39 miles (319.27 km) E | Foya Airport (FOY) | Foya, Liberia | |
| 13 | 211.24 miles (339.96 km) NNE | Tata Airport (LEK) | Labé, Guinea | |
| 14 | 211.84 miles (340.92 km) ENE | Kissidougou Airport (KSI) | Kissidougou, Guinea | |
| 15 | 218.00 miles (350.84 km) SE | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,088.13 miles (19,453.91 km) ESE | Ulawa Airport (RNA) | Arona, Ulawa Island, Solomon Islands | |
| 2 | 12,069.30 miles (19,423.60 km) ESE | Kirakira Airport (IRA) | Kirakira, Makira Island, Solomon Islands | |
| 3 | 12,068.16 miles (19,421.78 km) S | Mota Lava Airport (MTV) | Mota Lava, Vanuatu | |
| 4 | 12,057.05 miles (19,403.90 km) S | Vanua Lava Airport (SLH) | Sola, Vanua Lava, Torba Province, Vanuatu | |
| 5 | 12,035.12 miles (19,368.60 km) E | Uru Harbour Airport (ATD) | Atoifi, Malaita, Solomon Islands | |
| 6 | 12,031.52 miles (19,362.80 km) S | Gaua Airport (ZGU) | Gaua, Torba, Vanuatu | |
| 7 | 12,028.62 miles (19,358.14 km) E | Afutara Airport (AFT) | Afutara, Solomon Islands | |
| 8 | 12,013.29 miles (19,333.47 km) E | Auki Gwaunaru'u Airport (AKS) | Auki / Gwaunaru'u, Solomon Islands | |
| 9 | 11,973.32 miles (19,269.14 km) S | Maewo-Naone Airport (MWF) | Maewo, Vanuatu | |
| 10 | 11,966.04 miles (19,257.43 km) E | Honiara International Airport (formerly Henderson Field) (HIR) | Honiara, Guadalcanal Island, Solomon Islands | |
| 11 | 11,953.51 miles (19,237.25 km) S | Longana Airport (LOD) | Longana, Ambae Island, Pénama Province, Vanuatu | |
| 12 | 11,947.95 miles (19,228.32 km) ESE | Mbambanakira Airport (MBU) | Mbambanakira, Solomon Islands | |
| 13 | 11,944.88 miles (19,223.38 km) S | Santo-Pekoa International Airport (SON) | Luganville, Vanuatu | |
| 14 | 11,940.27 miles (19,215.96 km) S | Sara Airport (SSR) | Sara, Vanuatu | |
| 15 | 11,937.65 miles (19,211.74 km) E | Fera Airport (FRE) | Maringe, Fera Island, Isabel Province, Solomon Islands | |