Nonstop flight route between Sidney, Montana, United States and Guernsey, Channel Islands, United Kingdom:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(49°26'4"N by 2°36'6"W)
Distance from SDY to GCI:
4,263.41 miles (6,861.27 km)
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- About this route
- SDY Airport Information
- GCI Airport Information
- Facts about SDY
- Facts about GCI
- 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 GCI
- List of Nearest Airports to GCI
- Map of Furthest Airports from GCI
- List of Furthest Airports from GCI
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Guernsey Airport (GCI), Guernsey, Channel Islands, United Kingdom would travel a Great Circle distance of 4,263 miles (or 6,861 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 Guernsey 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 Guernsey 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: | GCI / EGJB |
| Airport Name: | Guernsey Airport |
| Location: | Guernsey, Channel Islands, United Kingdom |
| GPS Coordinates: | 49°26'4"N by 2°36'6"W |
| Area Served: | Guernsey |
| Operator/Owner: | States of Guernsey |
| Airport Type: | Public |
| Elevation: | 336 feet (102 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GCI |
| More Information: | GCI 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 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.
Facts about Guernsey Airport (GCI):
- A large number of single and twin-engined light and business aircraft are based at the airport.
- Atlantic Airlines operates from Bournemouth carrying mail, and from London Luton bringing in newspapers and DHL parcels.
- Work started on a new terminal building in 2002, which became operational on 19 April 2004.
- Guernsey Airport handled 886,396 passengers last year.
- Aurigny Air Services has its head office on the airport property.
- Guernsey Airport (GCI) currently has only 1 runway.
- The furthest airport from Guernsey Airport (GCI) is Dunedin International Airport (DUD), which is nearly antipodal to Guernsey Airport (meaning Guernsey Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,024 miles (19,350 kilometers) away in Dunedin, Otago, New Zealand.
- Because of Guernsey Airport's relatively low elevation of 336 feet, planes can take off or land at Guernsey 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 closest airport to Guernsey Airport (GCI) is Jersey Airport (JER), which is located 24 miles (39 kilometers) SE of GCI.
| 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 | 24.10 miles (38.78 km) SE | Jersey Airport (JER) | Jersey, Channel Islands, United Kingdom | |
| 2 | 25.58 miles (41.17 km) NE | Alderney Airport (ACI) | Alderney, Channel Islands, United Kingdom | |
| 3 | 52.67 miles (84.77 km) ENE | Cherbourg - Maupertus Airport (CER) | Cherbourg, France | |
| 4 | 61.39 miles (98.80 km) SW | Lannion - Côte de Granit Airport (LAI) | Lannion, France | |
| 5 | 63.06 miles (101.48 km) S | Saint-Brieuc - Armor Airport (SBK) | Saint-Brieuc, France | |
| 6 | 63.12 miles (101.58 km) SSE | Dinard–Pleurtuit–Saint-Malo Airport (DNR) | Dinard, France | |
| 7 | 79.68 miles (128.23 km) SW | Morlaix - Ploujean Airport (MXN) | Morlaix, France | |
| 8 | 95.57 miles (153.81 km) NW | Plymouth City Airport (PLH) | Plymouth, United Kingdom | |
| 9 | 96.75 miles (155.70 km) NNW | Exeter International Airport (EXT) | Exeter, United Kingdom | |
| 10 | 98.61 miles (158.70 km) E | Caen la Mer Airport (CFR) | Caen, France | |
| 11 | 98.85 miles (159.09 km) NNE | Bournemouth Airport (BOH) | Bournemouth, England, United Kingdom | |
| 12 | 102.15 miles (164.40 km) SSE | Rennes–Saint-Jacques Airport (RNS) | Rennes, France | |
| 13 | 107.12 miles (172.39 km) SW | Brest Bretagne Airport (BES) | Brest, France | |
| 14 | 108.45 miles (174.54 km) NE | Bembridge Airport (BBP) | Bembridge, Isle of Wight, United Kingdom | |
| 15 | 118.31 miles (190.41 km) NNE | Southampton Airport (SOU) | Eastleigh (near Southampton), England, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,023.73 miles (19,350.27 km) ESE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 12,009.21 miles (19,326.90 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 3 | 11,978.04 miles (19,276.75 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 4 | 11,974.37 miles (19,270.83 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,971.69 miles (19,266.52 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 6 | 11,967.58 miles (19,259.90 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 7 | 11,965.48 miles (19,256.52 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 8 | 11,961.42 miles (19,250.00 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 9 | 11,951.29 miles (19,233.69 km) SW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 10 | 11,934.17 miles (19,206.14 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,929.34 miles (19,198.36 km) ESE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,922.80 miles (19,187.84 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,919.43 miles (19,182.42 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,915.54 miles (19,176.15 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,895.42 miles (19,143.77 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |