Nonstop flight route between Porto, Portugal and Sidney, Montana, United States:
Departure Airport:
(41°14'8"N by 8°40'41"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from OPO to SDY:
4,419.39 miles (7,112.30 km)
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Jump to:
- About this route
- OPO Airport Information
- SDY Airport Information
- Facts about OPO
- Facts about SDY
- Map of Nearest Airports to OPO
- List of Nearest Airports to OPO
- Map of Furthest Airports from OPO
- List of Furthest Airports from OPO
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Francisco Sá Carneiro Airport (OPO), Porto, Portugal and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 4,419 miles (or 7,112 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 Francisco Sá Carneiro Airport and Sidney-Richland Municipal 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 Francisco Sá Carneiro Airport and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | SDY / KSDY |
| Airport Name: | Sidney-Richland Municipal Airport |
| Location: | Sidney, Montana, United States |
| GPS Coordinates: | 47°42'24"N by 104°11'32"W |
| Area Served: | Sidney, Montana |
| Operator/Owner: | Sidney Richland Airport Authority |
| Airport Type: | Public |
| Elevation: | 1985 feet (605 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SDY |
| More Information: | SDY Maps & Info |
Facts about Francisco Sá Carneiro Airport (OPO):
- Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
- The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
- 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.
- Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
- 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.
- 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 or simply Porto Airport is an international airport near Porto, Portugal.
- In 2007, the airport was voted the Best Airport in Europe in the Airport Service Quality Awards by Airports Council International.
Facts about Sidney-Richland Municipal Airport (SDY):
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.33 miles (66.52 km) NE | Sloulin Field International Airport (ISN) | Williston, North Dakota, United States | |
| 2 | 48.66 miles (78.31 km) SW | Dawson Community Airport (GDV) | Glendive, Montana, United States | |
| 3 | 69.41 miles (111.70 km) WNW | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 4 | 76.29 miles (122.77 km) NNW | Sher-Wood Airport (PWD) | Plentywood, Montana, United States | |
| 5 | 90.57 miles (145.76 km) SE | Dickinson Theodore Roosevelt Regional Airport (DIK) | Dickinson, North Dakota, United States | |
| 6 | 111.04 miles (178.70 km) SSE | Bowman Municipal Airport (BWM) | Bowman, North Dakota, United States | |
| 7 | 117.38 miles (188.91 km) WNW | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 8 | 118.10 miles (190.06 km) NNE | Estevan Regional Aerodrome (YEN) | Estevan, Saskatchewan, Canada | |
| 9 | 118.99 miles (191.50 km) SW | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 10 | 131.42 miles (211.49 km) W | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 11 | 139.74 miles (224.89 km) ENE | Minot Air Force Base (MIB) | Minot, North Dakota, United States | |
| 12 | 140.05 miles (225.38 km) ENE | Minot International Airport (MOT) | Minot, North Dakota, United States | |
| 13 | 174.07 miles (280.14 km) ESE | Bismarck Municipal Airport (BIS) | Bismarck, North Dakota, United States | |
| 14 | 189.51 miles (304.99 km) N | Regina International Airport (YQR) | Regina, Saskatchewan, Canada | |
| 15 | 191.53 miles (308.24 km) NNW | CFB Moose Jaw (YMJ) | Moose Jaw, Saskatchewan, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,383.49 miles (16,710.57 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,297.57 miles (16,572.29 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,290.39 miles (16,560.74 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,266.41 miles (16,522.14 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,218.50 miles (16,445.05 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,203.17 miles (16,420.36 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,179.29 miles (16,381.94 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,169.42 miles (16,366.06 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 9 | 10,153.64 miles (16,340.65 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 10 | 10,120.11 miles (16,286.69 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 10,113.85 miles (16,276.63 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 12 | 10,100.83 miles (16,255.67 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 13 | 10,089.33 miles (16,237.15 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,078.56 miles (16,219.83 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,076.48 miles (16,216.49 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |