Nonstop flight route between Sidney, Montana, United States and Helsinki / Malmi, Finland:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(60°15'14"N by 25°2'39"E)
Distance from SDY to HEM:
4,454.12 miles (7,168.20 km)
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Jump to:
- About this route
- SDY Airport Information
- HEM Airport Information
- Facts about SDY
- Facts about HEM
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- Map of Nearest Airports to HEM
- List of Nearest Airports to HEM
- Map of Furthest Airports from HEM
- List of Furthest Airports from HEM
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Helsinki-Malmi Airport (HEM), Helsinki / Malmi, Finland would travel a Great Circle distance of 4,454 miles (or 7,168 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 Sidney-Richland Municipal Airport and Helsinki-Malmi 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 Sidney-Richland Municipal Airport and Helsinki-Malmi Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | HEM / EFHF |
| Airport Names: |
|
| Location: | Helsinki / Malmi, Finland |
| GPS Coordinates: | 60°15'14"N by 25°2'39"E |
| Operator/Owner: | Finavia |
| Airport Type: | Public |
| Elevation: | 57 feet (17 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from HEM |
| More Information: | HEM Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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 (SDY) has 2 runways.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
Facts about Helsinki-Malmi Airport (HEM):
- The future of Malmi Airport is uncertain, as the City of Helsinki has plans for housing construction on the site.
- The first land airport of Helsinki, located in Tattarisuo in the township of Malmi, became operational in December 1936.
- Helsinki-Malmi Airport was among the first in the world to be designed from the beginning as an international airport.
- For a long time, the City of Helsinki has had plans to close the airport in order to use the area for construction of new residential zones, but this decision had been debated and deferred for many years.
- The closest airport to Helsinki-Malmi Airport (HEM) is Helsinki Airport (HEL), which is located only 5 miles (8 kilometers) NNW of HEM.
- Because of Helsinki-Malmi Airport's relatively low elevation of 57 feet, planes can take off or land at Helsinki-Malmi 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 Helsinki-Malmi Airport (HEM) is Chatham Islands (CHT), which is located 10,992 miles (17,691 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Helsinki-Malmi Airport handled 50 passengers last year.
- In addition to being known as "Helsinki-Malmi Airport", another name for HEM is "Helsinki-Malmin lentoasemaHelsingfors-Malm flygplats".
- Helsinki-Malmi Airport (HEM) has 2 runways.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 5.18 miles (8.33 km) NNW | Helsinki Airport (HEL) | Helsinki / Vantaa, Finland | |
| 2 | 28.23 miles (45.43 km) NNW | Hyvinkää Airfield (HYV) | Hyvinkää, Finland | |
| 3 | 58.49 miles (94.13 km) S | Tallinn Airport (TLL) | Tallinn, Estonia | |
| 4 | 78.12 miles (125.72 km) NE | Utti Airport (UTI) | Utti / Valkeala, Finland | |
| 5 | 94.04 miles (151.34 km) NNW | Tampere–Pirkkala Airport (TMP) | Tampere / Pirkkala, Finland | |
| 6 | 96.69 miles (155.61 km) WNW | Turku Airport (TKU) | Turku, Finland | |
| 7 | 111.05 miles (178.72 km) N | Halli Airport (KEV) | Kuorevesi, Finland | |
| 8 | 116.61 miles (187.67 km) SW | Kärdla Airport (KDL) | Kärdla, Hiiumaa, Estonia | |
| 9 | 118.50 miles (190.71 km) ENE | Lappeenranta Airport (LPP) | Lappeenranta, Finland | |
| 10 | 122.55 miles (197.22 km) NE | Mikkeli Airport (MIK) | Mikkeli, Finland | |
| 11 | 128.35 miles (206.57 km) S | Pärnu Airport (EPU) | Pärnu, Estonia | |
| 12 | 137.42 miles (221.16 km) NW | Pori Airport (POR) | Pori, Finland | |
| 13 | 146.44 miles (235.67 km) SSE | Tartu Airport (TAY) | Tartu, Estonia | |
| 14 | 149.79 miles (241.07 km) N | Jyväskylä Airport (JYV) | Jyväskylä, Finland | |
| 15 | 162.38 miles (261.33 km) NE | Varkaus Airport (VRK) | Joroinen, Finland | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,992.48 miles (17,690.64 km) SE | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 10,716.18 miles (17,245.98 km) ESE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 3 | 10,696.33 miles (17,214.03 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 4 | 10,694.92 miles (17,211.76 km) ESE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 5 | 10,679.10 miles (17,186.30 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 10,664.21 miles (17,162.34 km) ESE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 10,661.17 miles (17,157.45 km) ESE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 8 | 10,660.76 miles (17,156.79 km) ESE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 9 | 10,652.70 miles (17,143.81 km) ESE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 10 | 10,635.01 miles (17,115.34 km) ESE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 11 | 10,623.20 miles (17,096.34 km) ESE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 12 | 10,622.32 miles (17,094.93 km) ESE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 13 | 10,612.14 miles (17,078.54 km) ESE | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 14 | 10,608.52 miles (17,072.71 km) ESE | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 15 | 10,608.43 miles (17,072.57 km) ESE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |