Nonstop flight route between Salmon, Idaho, United States and Porto, Portugal:
Departure Airport:
(45°7'26"N by 113°52'53"W)
Arrival Airport:
(41°14'8"N by 8°40'41"W)
Distance from SMN to OPO:
4,895.63 miles (7,878.74 km)
Share this route:
Jump to:
- About this route
- SMN Airport Information
- OPO Airport Information
- Facts about SMN
- Facts about OPO
- 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 OPO
- List of Nearest Airports to OPO
- Map of Furthest Airports from OPO
- List of Furthest Airports from OPO
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 4,896 miles (or 7,879 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 Francisco Sá Carneiro 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 Francisco Sá Carneiro 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: | OPO / LPPR |
| Airport Names: |
|
| Location: | Porto, Portugal |
| GPS Coordinates: | 41°14'8"N by 8°40'41"W |
| Area Served: | Porto, Portugal |
| Operator/Owner: | Government of Portugal. |
| Airport Type: | Public |
| Elevation: | 226 feet (69 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from OPO |
| More Information: | OPO 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.
- 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.
- Lemhi County Airport (SMN) currently has only 1 runway.
Facts about Francisco Sá Carneiro Airport (OPO):
- Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
- Because of Francisco Sá Carneiro Airport's relatively low elevation of 226 feet, planes can take off or land at Francisco Sá Carneiro 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 Francisco Sá Carneiro Airport (OPO) is Westport Airport (WSZ), which is nearly antipodal to Francisco Sá Carneiro Airport (meaning Francisco Sá Carneiro Airport is almost on the exact opposite side of the Earth from Westport Airport), and is located 12,400 miles (19,955 kilometers) away in Westport, New Zealand.
- The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
- In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
- It includes an area of between 72 metres in the extreme south and 43 metres in the north.
- Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
| 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 | 27.12 miles (43.64 km) NNE | Braga Airport (BGZ) | Braga, Portugal | |
| 2 | 49.86 miles (80.24 km) E | Vila Real Airport (VRL) | Vila Real, Portugal | |
| 3 | 68.70 miles (110.56 km) N | Vigo Airport (VGO) | Vigo, Galicia, Spain | |
| 4 | 75.37 miles (121.30 km) S | Coimbra Airport (CBP) | Coimbra, Portugal | |
| 5 | 91.82 miles (147.78 km) SE | Covilhã Airport (COV) | Covilhã, Portugal | |
| 6 | 110.56 miles (177.94 km) ENE | Bragança Airport (BGC) | Bragança, Portugal | |
| 7 | 115.54 miles (185.94 km) N | Santiago de Compostela Airport (SCQ) | Santiago de Compostela, Spain | |
| 8 | 143.60 miles (231.10 km) N | A Coruña Airport (LCG) | A Coruña, Spain | |
| 9 | 166.53 miles (268.01 km) E | Salamanca-Matacán Airport (SLM) | Salamanca, Spain | |
| 10 | 171.77 miles (276.44 km) S | Lisbon Portela Airport (LIS) | Lisbon, Portugal | |
| 11 | 181.35 miles (291.86 km) ENE | León Airport (LEN) | León, Spain | |
| 12 | 189.39 miles (304.79 km) SSE | Badajoz Airport (BJZ) | Badajoz, Spain | |
| 13 | 200.72 miles (323.02 km) E | Valladolid International Airport (VLL) | Valladolid, Spain | |
| 14 | 209.89 miles (337.78 km) NE | Asturias Airport (OVD) | Oviedo, Asturias, Spain | |
| 15 | 221.68 miles (356.76 km) S | Beja Airport (BYJ) | Beja, Portugal | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,399.58 miles (19,955.14 km) SSW | Westport Airport (WSZ) | Westport, New Zealand | |
| 2 | 12,356.20 miles (19,885.33 km) WSW | Takaka Aerodrome (KTF) | Takaka, New Zealand | |
| 3 | 12,351.81 miles (19,878.26 km) S | Greymouth Airport (GMN) | Greymouth, New Zealand | |
| 4 | 12,349.51 miles (19,874.56 km) W | Motueka Aerodrome (MZP) | Motueka, New Zealand | |
| 5 | 12,338.07 miles (19,856.16 km) W | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 6 | 12,333.22 miles (19,848.35 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 7 | 12,303.25 miles (19,800.10 km) W | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 8 | 12,293.50 miles (19,784.43 km) SW | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 9 | 12,269.27 miles (19,745.42 km) SSW | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 12,269.21 miles (19,745.34 km) SSE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 11 | 12,255.84 miles (19,723.81 km) W | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 12 | 12,251.77 miles (19,717.26 km) SSE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 12,250.90 miles (19,715.86 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 14 | 12,244.42 miles (19,705.44 km) W | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 15 | 12,242.51 miles (19,702.36 km) SSE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |