Nonstop flight route between Lockhart River, Queensland, Australia and Salmon, Idaho, United States:
Departure Airport:
(12°47'12"S by 143°18'16"E)
Arrival Airport:
(45°7'26"N by 113°52'53"W)
Distance from IRG to SMN:
7,463.86 miles (12,011.89 km)
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Jump to:
- About this route
- IRG Airport Information
- SMN Airport Information
- Facts about IRG
- Facts about SMN
- Map of Nearest Airports to IRG
- List of Nearest Airports to IRG
- Map of Furthest Airports from IRG
- List of Furthest Airports from IRG
- 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 Lockhart River Airport (IRG), Lockhart River, Queensland, Australia and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 7,464 miles (or 12,012 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 Lockhart River Airport 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 Lockhart River Airport 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: | IRG / YLHR |
| Airport Name: | Lockhart River Airport |
| Location: | Lockhart River, Queensland, Australia |
| GPS Coordinates: | 12°47'12"S by 143°18'16"E |
| Operator/Owner: | Lockhart River Aerodrome Company Pty Ltd |
| Airport Type: | Public |
| Elevation: | 77 feet (23 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from IRG |
| More Information: | IRG 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 Lockhart River Airport (IRG):
- Lockhart River Airport (IRG) currently has only 1 runway.
- The closest airport to Lockhart River Airport (IRG) is Coen Airport (CUQ), which is located 69 miles (110 kilometers) S of IRG.
- In addition, the 479th Service Squadron provided supplies for the B-26 and B-17s assigned to the airport, as well as operating a repair and maintenance depot for B-24 Liberator aircraft.
- Because of Lockhart River Airport's relatively low elevation of 77 feet, planes can take off or land at Lockhart River 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.
- Lockhart River Airport is an airport in Lockhart River, Queensland, Australia, located approximately 800 km north of Cairns on the eastern coast of Cape York Peninsula.
- The furthest airport from Lockhart River Airport (IRG) is Cesária Évora International Airport (VXE), which is located 11,611 miles (18,686 kilometers) away in São Vicente, Cape Verde.
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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 68.54 miles (110.31 km) S | Coen Airport (CUQ) | Coen, Queensland, Australia |     |
| 2 | 89.67 miles (144.31 km) WNW | Agnew Airport (AGW) | Agnew, Queensland, Australia | |
| 3 | 93.27 miles (150.10 km) W | Weipa Airport (WEI) | Weipa, Queensland, Australia | |
| 4 | 113.57 miles (182.77 km) WSW | Aurukun Airport (AUU) | Aurukun, Queensland, Australia | |
| 5 | 139.14 miles (223.93 km) NNW | Northern Peninsula Airport (ABM) | Bamaga, Queensland, Australia | |
| 6 | 166.82 miles (268.48 km) NNW | Horn Island Airport (HID) | Horn Island, Queensland, Australia | |
| 7 | 184.88 miles (297.54 km) SW | Edward River Airport (EDR) | Edward River, Queensland, Australia | |
| 8 | 189.79 miles (305.43 km) N | Coconut Island (CNC) | Coconut Island (Poruma Island), Queensland, Australia | |
| 9 | 191.55 miles (308.28 km) NNW | Kubin Airport (KUG) | Kubin, Moa Island, Queensland, Australia | |
| 10 | 194.46 miles (312.95 km) SE | Lizard Island Airport (LZR) | Lizard Island, Queensland, Australia | |
| 11 | 197.60 miles (318.01 km) NNW | Badu Island Airport (BDD) | Badu Island, Queensland, Australia | |
| 12 | 203.67 miles (327.78 km) N | Yam Island Airport (XMY) | Yam Island, Queensland, Australia | |
| 13 | 204.84 miles (329.66 km) NNE | Murray Island Airport (MYI) | Murray Island, Torres Strait Islands, Queensland, Australia | |
| 14 | 213.53 miles (343.64 km) SSW | Kowanyama Airport (KWM) | Kowanyama, Queensland, Australia | |
| 15 | 222.67 miles (358.35 km) SE | Cooktown Airport (CTN) | Cooktown, Queensland, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,610.91 miles (18,685.90 km) WNW | Cesária Évora International Airport (VXE) | São Vicente, Cape Verde | |
| 2 | 11,604.73 miles (18,675.96 km) WNW | São Filipe Airport (SFL) | Fogo, Cape Verde | |
| 3 | 11,604.68 miles (18,675.87 km) WNW | Agostinho Neto Airport (NTO) | Ponta do Sol, Santo Antão, Cape Verde | |
| 4 | 11,593.78 miles (18,658.33 km) WNW | Mosteiros Airport (MTI) | Mosteiros, Cape Verde | |
| 5 | 11,566.97 miles (18,615.19 km) WNW | Preguiça Airport (SNE) | São Nicolau, Cape Verde | |
| 6 | 11,539.16 miles (18,570.42 km) W | Praia International Airport (RAI) | Praia, Cape Verde | |
| 7 | 11,518.38 miles (18,536.99 km) WNW | Maio Airport (MMO) | Maio, Cape Verde | |
| 8 | 11,484.85 miles (18,483.03 km) WNW | Aristides Pereira International Airport (BVC) | Boa Vista, Cape Verde | |
| 9 | 11,478.87 miles (18,473.40 km) WNW | Amílcar Cabral International Airport (SID) | Sal Island, Cape Verde | |
| 10 | 11,299.68 miles (18,185.02 km) NNE | Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) | Parnaiba, Piaui, Brazil | |
| 11 | 11,285.50 miles (18,162.20 km) N | Pinto Martins – Fortaleza International Airport (FOR) | Fortaleza, Ceará, Brazil | |
| 12 | 11,283.92 miles (18,159.67 km) NNE | Barreirinhas Airport (BRB) | Barreirinhas, Maranhão, Brazil | |
| 13 | 11,255.28 miles (18,113.57 km) NNE | Marechal Cunha Machado International Airport (Tirirical) (SLZ) | São Luís, Brazil | |
| 14 | 11,250.26 miles (18,105.49 km) NNW | Governador Carlos Wilson Airport (FEN) | Fernando de Noronha, Pernambuco, Brazil | |
| 15 | 11,234.65 miles (18,080.37 km) ENE | Cayenne – Félix Eboué Airport (CAY) | Cayenne, French Guiana | |
| 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 | |