Nonstop flight route between Sidney, Montana, United States and Canton Island, Kiribati:
Departure Airport:
(47°42'24"N by 104°11'32"W)
Arrival Airport:
(2°46'9"S by 171°42'19"W)
Distance from SDY to CIS:
5,334.85 miles (8,585.59 km)
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Jump to:
- About this route
- SDY Airport Information
- CIS Airport Information
- Facts about SDY
- Facts about CIS
- 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 CIS
- List of Nearest Airports to CIS
- Map of Furthest Airports from CIS
- List of Furthest Airports from CIS
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Canton Island Airport (CIS), Canton Island, Kiribati would travel a Great Circle distance of 5,335 miles (or 8,586 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 Canton Island 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 Canton Island 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: | CIS / PCIS |
| Airport Name: | Canton Island Airport |
| Location: | Canton Island, Kiribati |
| GPS Coordinates: | 2°46'9"S by 171°42'19"W |
| Elevation: | 9 feet (3 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CIS |
| More Information: | CIS Maps & Info |
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.
- 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.
- 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.
Facts about Canton Island Airport (CIS):
- The furthest airport from Canton Island Airport (CIS) is Malabo International Airport (SSG), which is nearly antipodal to Canton Island Airport (meaning Canton Island Airport is almost on the exact opposite side of the Earth from Malabo International Airport), and is located 12,363 miles (19,896 kilometers) away in Malabo, Equatorial Guinea.
- The closest airport to Canton Island Airport (CIS) is Funafuti International Airport (FUN), which is located 741 miles (1,193 kilometers) WSW of CIS.
- Because of Canton Island Airport's relatively low elevation of 9 feet, planes can take off or land at Canton Island 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.
- Canton Island Airport (CIS) currently has only 1 runway.
- Canton Island Airport is an airport located on Kanton Island, in the Phoenix Islands, in the Republic of Kiribati.
- The political status of the island was uncertain at first, with American and British settlers occupying two separate camps on the island.
| 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 | 741.06 miles (1,192.61 km) WSW | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 2 | 744.44 miles (1,198.06 km) S | Asau Airport (AAU) | Asau, Samoa | |
| 3 | 759.10 miles (1,221.66 km) S | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 4 | 764.49 miles (1,230.32 km) S | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 5 | 765.50 miles (1,231.95 km) S | Fagali'i Airport (FGI) | Apia, Samoa | |
| 6 | 787.65 miles (1,267.59 km) SSW | Wallis Island (WLS) | Wallis and Futuna Islands | |
| 7 | 793.25 miles (1,276.61 km) W | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |
| 8 | 798.23 miles (1,284.62 km) S | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 9 | 800.85 miles (1,288.83 km) S | Ofu Airport (OFU) | Ofu, American Samoa | |
| 10 | 805.83 miles (1,296.86 km) S | Tau Airport (TAV) | Tau, American Samoa | |
| 11 | 806.08 miles (1,297.25 km) S | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 12 | 854.02 miles (1,374.41 km) W | Beru Island Airport (BEZ) | Beru, Kiribati | |
| 13 | 903.15 miles (1,453.47 km) SE | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 14 | 907.85 miles (1,461.04 km) SSW | Aéroport de Futuna - Pointe-Vele Pointe Vele Airport (FUT) | Futuna Island, Wallis and Futuna Islands | |
| 15 | 923.99 miles (1,487.02 km) SSW | Mata'aho Airport (NFO) | Niuafo'ou, Tonga | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,362.94 miles (19,896.18 km) NNW | Malabo International Airport (SSG) | Malabo, Equatorial Guinea | |
| 2 | 12,330.37 miles (19,843.76 km) NW | Limbe Airport (VCC) | Limbe, Cameroon | |
| 3 | 12,320.47 miles (19,827.82 km) W | Kribi Airport (KBI) | Kribi, Cameroon | |
| 4 | 12,316.62 miles (19,821.64 km) WNW | Bata Airport (BSG) | Bata, Equatorial Guinea | |
| 5 | 12,306.58 miles (19,805.47 km) NW | Douala International Airport (DLA) | Douala, Cameroon | |
| 6 | 12,290.62 miles (19,779.78 km) N | Akwa Ibom International Airport (QUO) | Uyo, Akwa Ibom State, Nigeria | |
| 7 | 12,284.29 miles (19,769.60 km) N | Margaret Ekpo International Airport (CBQ) | Calabar, Nigeria | |
| 8 | 12,259.48 miles (19,729.67 km) NNW | Libreville Leon M'ba International Airport (LBV) | Libreville, Gabon | |
| 9 | 12,256.01 miles (19,724.09 km) NNE | Port Harcourt International Airport, Omagwa (PHC) | Port Harcourt, Nigeria | |
| 10 | 12,238.71 miles (19,696.25 km) NNE | São Tomé International Airport (TMS) | São Tomé, São Tomé and Príncipe | |
| 11 | 12,238.43 miles (19,695.79 km) NNE | Sam Mbakwe International Cargo Airport (QOW) | Owerri, Nigeria | |
| 12 | 12,237.26 miles (19,693.91 km) W | Ebolowa Airport (EBW) | Ebolowa, Cameroon | |
| 13 | 12,222.36 miles (19,669.93 km) NNW | Mamfe Airport (MMF) | Mamfe, Cameroon | |
| 14 | 12,215.04 miles (19,658.16 km) NNW | Dschang Airport (DSC) | Dschang, Cameroon | |
| 15 | 12,210.85 miles (19,651.42 km) WNW | Bitam Airport (BMM) | Bitam, Gabon | |