Nonstop flight route between Riverton, Wyoming, United States and Salmon, Idaho, United States:
Departure Airport:
(43°3'51"N by 108°27'34"W)
Arrival Airport:
(45°7'26"N by 113°52'53"W)
Distance from RIW to SMN:
304.27 miles (489.67 km)
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Jump to:
- About this route
- RIW Airport Information
- SMN Airport Information
- Facts about RIW
- Facts about SMN
- Map of Nearest Airports to RIW
- List of Nearest Airports to RIW
- Map of Furthest Airports from RIW
- List of Furthest Airports from RIW
- 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 Riverton Regional Airport (RIW), Riverton, Wyoming, United States and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 304 miles (or 490 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 relatively short distance between Riverton Regional Airport and Lemhi County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | RIW / KRIW |
| Airport Name: | Riverton Regional Airport |
| Location: | Riverton, Wyoming, United States |
| GPS Coordinates: | 43°3'51"N by 108°27'34"W |
| Area Served: | Riverton, Wyoming |
| Operator/Owner: | City of Riverton |
| Airport Type: | Public |
| Elevation: | 5528 feet (1,685 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RIW |
| More Information: | RIW 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 Riverton Regional Airport (RIW):
- As per Federal Aviation Administration records, the airport had 17,035 passenger boardings in calendar year 2008, 14,186 enplanements in 2009, and 14,361 in 2010.
- Because of Riverton Regional Airport's high elevation of 5,528 feet, planes must typically fly at a faster airspeed in order to takeoff or land at RIW. Combined with a high temperature, this could make RIW a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The closest airport to Riverton Regional Airport (RIW) is Hunt Field (LND), which is located 22 miles (35 kilometers) SW of RIW.
- Riverton Regional Airport (RIW) has 2 runways.
- The furthest airport from Riverton Regional Airport (RIW) is Sir Gaëtan Duval Airport (RRG), which is located 10,758 miles (17,313 kilometers) away in Rodrigues Island, Mauritius.
Facts about Lemhi County Airport (SMN):
- 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.
- 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 | 21.90 miles (35.25 km) SW | Hunt Field (LND) | Lander, Wyoming, United States |     |
| 2 | 67.12 miles (108.03 km) NNE | Worland Municipal Airport (WRL) | Worland, Wyoming, United States | |
| 3 | 70.65 miles (113.70 km) WSW | Ralph Wenz Field (PWY) | Pinedale, Wyoming, United States | |
| 4 | 89.99 miles (144.83 km) WSW | Miley Memorial Field (BPI) | Big Piney, Wyoming, United States | |
| 5 | 101.42 miles (163.22 km) E | Casper–Natrona County International AirportCasper Army Airfield (CPR) | Casper, Wyoming, United States | |
| 6 | 104.47 miles (168.12 km) NNW | Yellowstone Regional Airport (COD) | Cody, Wyoming, United States | |
| 7 | 106.17 miles (170.87 km) SSW | Rock Springs–Sweetwater County Airport (RKS) | Rock Springs, Wyoming, United States | |
| 8 | 108.11 miles (173.99 km) SE | Rawlins Municipal Airport (RWL) | Rawlins, Wyoming, United States | |
| 9 | 120.47 miles (193.88 km) WNW | Jackson Hole Airport (JAC) | Jackson, Wyoming, United States | |
| 10 | 128.05 miles (206.07 km) W | Afton Municipal Airport (AFO) | Afton, Wyoming, United States | |
| 11 | 137.01 miles (220.50 km) SW | Kemmerer Municipal Airport (EMM) | Kemmerer, Wyoming, United States | |
| 12 | 138.92 miles (223.57 km) NNE | Sheridan County Airport (SHR) | Sheridan, Wyoming, United States | |
| 13 | 139.71 miles (224.84 km) SE | Shively Field (SAA) | Saratoga, Wyoming, United States | |
| 14 | 156.58 miles (252.00 km) E | Converse County Airport (DGW) | Douglas, Wyoming, United States | |
| 15 | 170.73 miles (274.76 km) ENE | Gillette–Campbell County Airport (GCC) | Gillette, Wyoming, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,757.85 miles (17,313.05 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,679.24 miles (17,186.53 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,670.61 miles (17,172.64 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,646.95 miles (17,134.56 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,570.44 miles (17,011.44 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,458.70 miles (16,831.61 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,420.60 miles (16,770.29 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,385.71 miles (16,714.13 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,281.40 miles (16,546.27 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,271.67 miles (16,530.62 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,264.17 miles (16,518.54 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 12 | 10,252.06 miles (16,499.05 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 13 | 10,250.08 miles (16,495.86 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 14 | 10,236.11 miles (16,473.38 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 15 | 10,217.30 miles (16,443.11 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 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 | |