Nonstop flight route between St. Mary's, Alaska, United States and Canton Island, Kiribati:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(2°46'9"S by 171°42'19"W)
Distance from KSM to CIS:
4,501.27 miles (7,244.07 km)
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Jump to:
- About this route
- KSM Airport Information
- CIS Airport Information
- Facts about KSM
- Facts about CIS
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- 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 St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Canton Island Airport (CIS), Canton Island, Kiribati would travel a Great Circle distance of 4,501 miles (or 7,244 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 St. Mary's 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 St. Mary's 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: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM 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 St. Mary's Airport (KSM):
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- St. Mary's Airport (KSM) has 2 runways.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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 Canton Island Airport (CIS):
- Canton Island Airport (CIS) currently has only 1 runway.
- 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 political status of the island was uncertain at first, with American and British settlers occupying two separate camps on the island.
- 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.
- The closest airport to Canton Island Airport (CIS) is Funafuti International Airport (FUN), which is located 741 miles (1,193 kilometers) WSW of CIS.
- Though Kanton Island was never physically invaded by Japanese forces, the airfield was bombarded on 1 November 1943 by the Japanese submarine I-36.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States |     |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 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 | |