Nonstop flight route between Sidney, Montana, United States and Sion, Switzerland:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(46°13'10"N by 7°19'36"E)
Distance from SDY to SIR:
4,746.57 miles (7,638.85 km)
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Jump to:
- About this route
- SDY Airport Information
- SIR Airport Information
- Facts about SDY
- Facts about SIR
- 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 SIR
- List of Nearest Airports to SIR
- Map of Furthest Airports from SIR
- List of Furthest Airports from SIR
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Sion Airport (SIR), Sion, Switzerland would travel a Great Circle distance of 4,747 miles (or 7,639 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 Sion 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 Sion 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: | SIR / LSGS |
| Airport Names: |
|
| Location: | Sion, Switzerland |
| GPS Coordinates: | 46°13'10"N by 7°19'36"E |
| Area Served: | Sion, Switzerland |
| Elevation: | 1585 feet (483 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SIR |
| More Information: | SIR 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.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
Facts about Sion Airport (SIR):
- The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.
- The furthest airport from Sion Airport (SIR) is Chatham Islands (CHT), which is nearly antipodal to Sion Airport (meaning Sion Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,188 miles (19,615 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- In addition to being known as "Sion Airport", other names for SIR include "Aéroport de Sion" and "LSGS /LSMS".
- Sion Airport (SIR) 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 | 33.31 miles (53.61 km) S | Aosta Valley Airport (AOT) | Aosta, Italy | |
| 2 | 40.64 miles (65.41 km) NW | Lausanne Airport (QLS) | Lausanne, Switzerland | |
| 3 | 42.49 miles (68.38 km) SW | Megève Aerodrome (MVV) | Megève, France | |
| 4 | 48.55 miles (78.14 km) N | Bern Airport (BRN) | Bern, Switzerland | |
| 5 | 50.66 miles (81.53 km) W | Annemasse Aerodrome (QNJ) | Annemasse, France | |
| 6 | 58.20 miles (93.66 km) W | Geneva International Airport (GVA) | Geneva, Switzerland | |
| 7 | 65.86 miles (106.00 km) SSW | Courchevel Airport (CVF) | Courchevel, France | |
| 8 | 66.71 miles (107.36 km) SSW | Méribel Airport (MFX) | Meribel, France | |
| 9 | 71.98 miles (115.84 km) SSE | Turin Airport (TRN) | Turin, Italy | |
| 10 | 75.96 miles (122.25 km) NE | Emmen Swiss Air Base (EML) | Emmen, Lucerne, Switzerland | |
| 11 | 77.30 miles (124.41 km) E | Lugano Airport (LUG) | Lugano, Agno, Switzerland | |
| 12 | 78.50 miles (126.34 km) ESE | Milan Malpensa Airport (MXP) | Milano, Italy | |
| 13 | 80.19 miles (129.05 km) WSW | Chambéry Airport (CMF) | Chambéry, France | |
| 14 | 90.13 miles (145.05 km) NW | Besançon - La Vèze Aerodrome (QBQ) | Besançon / La Vèze, France | |
| 15 | 91.13 miles (146.66 km) NNW | Montbéliard - Courcelles Aerodrome (XMF) | Montbéliard, France | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,188.10 miles (19,614.80 km) SE | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,749.62 miles (18,909.14 km) ESE | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 3 | 11,732.10 miles (18,880.94 km) SE | Hawke's Bay Airport (NPE) | Napier, New Zealand | |
| 4 | 11,730.83 miles (18,878.89 km) SE | Gisborne Airport (GIS) | Gisborne, New Zealand | |
| 5 | 11,727.65 miles (18,873.78 km) ESE | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 6 | 11,721.62 miles (18,864.07 km) ESE | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 7 | 11,719.38 miles (18,860.46 km) ESE | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 8 | 11,710.67 miles (18,846.45 km) ESE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 9 | 11,693.26 miles (18,818.43 km) ESE | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 10 | 11,689.24 miles (18,811.97 km) E | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 11 | 11,681.75 miles (18,799.91 km) ESE | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 12 | 11,666.63 miles (18,775.57 km) SE | Taupo AirportTe Papa Waka Rererangi o Taupō (TUO) | Taupo, New Zealand | |
| 13 | 11,663.50 miles (18,770.54 km) E | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 14 | 11,656.56 miles (18,759.37 km) ESE | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 15 | 11,654.53 miles (18,756.10 km) SE | Whakatane Airport (WHK) | Whakatane, New Zealand | |