Nonstop flight route between Helsinki / Vantaa, Finland and Sidney, Montana, United States:
Departure Airport:
(60°19'1"N by 24°57'47"E)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from HEL to SDY:
4,448.95 miles (7,159.87 km)
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Jump to:
- About this route
- HEL Airport Information
- SDY Airport Information
- Facts about HEL
- Facts about SDY
- Map of Nearest Airports to HEL
- List of Nearest Airports to HEL
- Map of Furthest Airports from HEL
- List of Furthest Airports from HEL
- 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 Helsinki Airport (HEL), Helsinki / Vantaa, Finland and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 4,449 miles (or 7,160 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 Helsinki 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 Helsinki 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: | HEL / EFHK |
| Airport Names: |
|
| Location: | Helsinki / Vantaa, Finland |
| GPS Coordinates: | 60°19'1"N by 24°57'47"E |
| Area Served: | Helsinki, Finland |
| Operator/Owner: | Finavia |
| Airport Type: | Public |
| Elevation: | 179 feet (55 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from HEL |
| More Information: | HEL 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 Helsinki Airport (HEL):
- The airport's three runways provide a platform for future growth while the airport can accommodate wide-body aircraft such as the Airbus A340.
- The airport is operated by Finavia, the state-owned enterprise that operates Finland's airports.
- Helsinki Airport (HEL) has 3 runways.
- There are regular bus service 615 and 620 to the Helsinki Central railway station in 30–55 minutes, and major hotels and railway stations in the Greater Helsinki Area in 15–120 minutes.
- Helsinki Airport handled 15,279,043 passengers last year.
- The furthest airport from Helsinki Airport (HEL) is Chatham Islands (CHT), which is located 10,992 miles (17,689 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The closest airport to Helsinki Airport (HEL) is Helsinki-Malmi Airport (HEM), which is located only 5 miles (8 kilometers) SSE of HEL.
- In addition to being known as "Helsinki Airport", another name for HEL is "Helsinki-Vantaan lentoasemaHelsingfors-Vanda flygplats".
- Because of Helsinki Airport's relatively low elevation of 179 feet, planes can take off or land at Helsinki 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.
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 5.18 miles (8.33 km) SSE | Helsinki-Malmi Airport (HEM) | Helsinki / Malmi, Finland |     |
| 2 | 23.47 miles (37.77 km) N | Hyvinkää Airfield (HYV) | Hyvinkää, Finland | |
| 3 | 62.50 miles (100.59 km) S | Tallinn Airport (TLL) | Tallinn, Estonia | |
| 4 | 78.01 miles (125.54 km) ENE | Utti Airport (UTI) | Utti / Valkeala, Finland | |
| 5 | 88.86 miles (143.01 km) NNW | Tampere–Pirkkala Airport (TMP) | Tampere / Pirkkala, Finland | |
| 6 | 93.16 miles (149.92 km) W | Turku Airport (TKU) | Turku, Finland | |
| 7 | 106.51 miles (171.40 km) N | Halli Airport (KEV) | Kuorevesi, Finland | |
| 8 | 118.08 miles (190.03 km) SW | Kärdla Airport (KDL) | Kärdla, Hiiumaa, Estonia | |
| 9 | 118.93 miles (191.40 km) ENE | Lappeenranta Airport (LPP) | Lappeenranta, Finland | |
| 10 | 120.66 miles (194.18 km) NE | Mikkeli Airport (MIK) | Mikkeli, Finland | |
| 11 | 132.27 miles (212.87 km) S | Pärnu Airport (EPU) | Pärnu, Estonia | |
| 12 | 132.54 miles (213.29 km) NW | Pori Airport (POR) | Pori, Finland | |
| 13 | 145.87 miles (234.75 km) N | Jyväskylä Airport (JYV) | Jyväskylä, Finland | |
| 14 | 151.56 miles (243.92 km) SSE | Tartu Airport (TAY) | Tartu, Estonia | |
| 15 | 160.38 miles (258.11 km) NE | Varkaus Airport (VRK) | Joroinen, Finland | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,991.59 miles (17,689.20 km) SE | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 10,717.34 miles (17,247.85 km) ESE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 3 | 10,697.84 miles (17,216.46 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 4 | 10,695.85 miles (17,213.25 km) ESE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 5 | 10,680.52 miles (17,188.59 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 10,665.03 miles (17,163.66 km) ESE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 10,661.74 miles (17,158.36 km) ESE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 8 | 10,661.47 miles (17,157.93 km) ESE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 9 | 10,653.85 miles (17,145.66 km) ESE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 10 | 10,635.31 miles (17,115.83 km) ESE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 11 | 10,624.29 miles (17,098.10 km) ESE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 12 | 10,623.51 miles (17,096.84 km) ESE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 13 | 10,612.02 miles (17,078.35 km) SE | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 14 | 10,609.32 miles (17,074.00 km) ESE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 15 | 10,608.54 miles (17,072.75 km) ESE | Wellington International Airport (WLG) | Wellington, 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 | |