Nonstop flight route between Roatán, Honduras and Salmon, Idaho, United States:
Departure Airport:
(16°19'1"N by 86°31'19"W)
Arrival Airport:
(45°7'26"N by 113°52'53"W)
Distance from RTB to SMN:
2,544.12 miles (4,094.36 km)
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- About this route
- RTB Airport Information
- SMN Airport Information
- Facts about RTB
- Facts about SMN
- Map of Nearest Airports to RTB
- List of Nearest Airports to RTB
- Map of Furthest Airports from RTB
- List of Furthest Airports from RTB
- 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 Roatan International Airport – Bay Islands (RTB), Roatán, Honduras and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 2,544 miles (or 4,094 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 Roatan International Airport – Bay Islands 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 Roatan International Airport – Bay Islands 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: | RTB / MHRO |
| Airport Names: |
|
| Location: | Roatán, Honduras |
| GPS Coordinates: | 16°19'1"N by 86°31'19"W |
| Operator/Owner: | InterAirports |
| Airport Type: | Public |
| Elevation: | 39 feet (12 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from RTB |
| More Information: | RTB 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 Roatan International Airport – Bay Islands (RTB):
- Coxen Hole 2 km, French Harbour 9,5 km, Jonesville 22 km, Milton Bight 18 km, Oak Ridge 25 km, West Bay 17 km and West End 12 km
- In addition to being known as "Roatan International Airport – Bay Islands", another name for RTB is "Aeropuerto Internacional Roatán – Bay Islands".
- The closest airport to Roatan International Airport – Bay Islands (RTB) is Guanaja Airport (GJA), which is located 42 miles (67 kilometers) ENE of RTB.
- The airport resides at an elevation of 12 m above mean sea level.
- Because of Roatan International Airport – Bay Islands's relatively low elevation of 39 feet, planes can take off or land at Roatan International Airport – Bay Islands 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.
- Roatan International Airport – Bay Islands (RTB) currently has only 1 runway.
- The furthest airport from Roatan International Airport – Bay Islands (RTB) is Cocos (Keeling) Island Airport (CCK), which is nearly antipodal to Roatan International Airport – Bay Islands (meaning Roatan International Airport – Bay Islands is almost on the exact opposite side of the Earth from Cocos (Keeling) Island Airport), and is located 12,074 miles (19,431 kilometers) away in Cocos Islands, Australia.
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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.75 miles (67.19 km) ENE | Guanaja Airport (GJA) | Guanaja, Bay Islands, Honduras |     |
| 2 | 45.34 miles (72.96 km) SSW | Golosón International Airport (LCE) | La Ceiba, Honduras | |
| 3 | 110.64 miles (178.05 km) WSW | Ramón Villeda Morales International Airport (SAP) | San Pedro Sula, Honduras | |
| 4 | 122.09 miles (196.49 km) WNW | Dangriga Airport (DGA) | Dangriga, Belize | |
| 5 | 122.85 miles (197.70 km) W | Placencia Airport (PLJ) | Placencia, Belize | |
| 6 | 125.95 miles (202.69 km) W | Independence Airport (INB) | Independence, Belize | |
| 7 | 126.33 miles (203.32 km) W | Big Creek Airport (BGK) | Big Creek, Belize | |
| 8 | 127.15 miles (204.64 km) WNW | Melinda Airport (MDB) | Melinda, Belize | |
| 9 | 138.00 miles (222.08 km) NW | Belize City Municipal Airport (TZA) | Belize City, Belize | |
| 10 | 138.60 miles (223.05 km) NW | Caye Chapel Airport (CYC) | Caye Chapel, Belize | |
| 11 | 139.68 miles (224.79 km) NW | Caye Caulker Airport (CUK) | Caye Caulker, Belize | |
| 12 | 145.14 miles (233.58 km) NW | Philip S. W. Goldson International Airport (BZE) | Ladyville (near Belize City), Belize | |
| 13 | 146.02 miles (235.00 km) NW | San Pedro Airport (SPR) | San Pedro, Belize | |
| 14 | 152.41 miles (245.28 km) SSW | Soto Cano Air Base (XPL) | Comayagua, Honduras | |
| 15 | 162.58 miles (261.65 km) SSW | Toncontín International Airport (TGU) | Tegucigalpa, Honduras | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,073.81 miles (19,430.87 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 11,521.74 miles (18,542.40 km) WSW | Christmas Island Airport (XCH) | Christmas Island, Australia | |
| 3 | 11,386.96 miles (18,325.49 km) SW | Fatmawati Soekarno Airport (BKS) | Bengkulu, Indonesia | |
| 4 | 11,367.09 miles (18,293.52 km) SSW | Rokot Airport (RKI) | Sipura, Indonesia | |
| 5 | 11,334.98 miles (18,241.83 km) SW | Radin Inten II Airport (RIA II) (TKG) | Bandar Lampung, Sumatra, Indonesia | |
| 6 | 11,313.82 miles (18,207.78 km) SSW | Depati Parbo Airport (KRC) | Kerinci, Indonesia | |
| 7 | 11,301.47 miles (18,187.90 km) SW | Gunung Batin Airport (AKQ) | Astraksetra, Indonesia | |
| 8 | 11,300.57 miles (18,186.46 km) SW | Soekarno–Hatta International Airport (CGK) | Jakarta, Indonesia | |
| 9 | 11,294.12 miles (18,176.08 km) SW | Halim Perdanakusuma Airport (HLP) | Jakarta, Indonesia | |
| 10 | 11,282.98 miles (18,158.15 km) WSW | Husein Sastranegara International Airport (HSA) (BDO) | Bandung, Indonesia | |
| 11 | 11,268.01 miles (18,134.06 km) SSW | Minangkabau International Airport (MIA) (PDG) | Ketaping, West Sumatra, Indonesia | |
| 12 | 11,262.47 miles (18,125.14 km) WSW | Cibeureum Airfield (TSY) | Tasikmalaya, West Java, Indonesia | |
| 13 | 11,236.43 miles (18,083.24 km) SW | Sultan Mahmud Badaruddin II International Airport (SMB II) (PLM) | Palembang, Sumatra, Indonesia | |
| 14 | 11,226.39 miles (18,067.08 km) WSW | Tunggul Wulung Airport (CXP) | Cilacap, Java Island, Indonesia | |
| 15 | 11,223.07 miles (18,061.74 km) WSW | Penggung Airport/Chakrabhuwana Airport (CBN) | Cirebon, Java, Indonesia | |
| 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 | |