Nonstop flight route between St. Mary's, Alaska, United States and Colonsay, Inner Hebrides, Scotland, United Kingdom:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(56°3'26"N by 6°14'35"W)
Distance from KSM to CSA:
4,182.14 miles (6,730.48 km)
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Jump to:
- About this route
- KSM Airport Information
- CSA Airport Information
- Facts about KSM
- Facts about CSA
- 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 CSA
- List of Nearest Airports to CSA
- Map of Furthest Airports from CSA
- List of Furthest Airports from CSA
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Colonsay Airport (CSA), Colonsay, Inner Hebrides, Scotland, United Kingdom would travel a Great Circle distance of 4,182 miles (or 6,730 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 Colonsay 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 Colonsay 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: | CSA / |
| Airport Names: |
|
| Location: | Colonsay, Inner Hebrides, Scotland, United Kingdom |
| GPS Coordinates: | 56°3'26"N by 6°14'35"W |
| Area Served: | Colonsay |
| Operator/Owner: | Argyll and Bute Council |
| Airport Type: | Public |
| Elevation: | 44 feet (13 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CSA |
| More Information: | CSA Maps & Info |
Facts about St. Mary's Airport (KSM):
- St. Mary's Airport (KSM) has 2 runways.
- 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.
- 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.
- 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 Colonsay Airport (CSA):
- Colonsay Airport (CSA) currently has only 1 runway.
- The furthest airport from Colonsay Airport (CSA) is Ryan's Creek Aerodrome (SZS), which is located 11,759 miles (18,925 kilometers) away in Stewart Island, New Zealand.
- In addition to being known as "Colonsay Airport", other names for CSA include "Port-adhair Colbhasaigh" and "EGEY".
- Because of Colonsay Airport's relatively low elevation of 44 feet, planes can take off or land at Colonsay 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 Colonsay Airport (CSA) is Islay Airport (ILY), which is located 26 miles (42 kilometers) S of CSA.
| 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 | 25.86 miles (41.62 km) S | Islay Airport (ILY) | Islay, Scotland, United Kingdom | |
| 2 | 38.83 miles (62.50 km) NW | Tiree Airport (TRE) | Tiree, Scotland, United Kingdom | |
| 3 | 40.26 miles (64.80 km) NNW | Coll Island Airport (COL) | Coll, Scotland, United Kingdom | |
| 4 | 47.97 miles (77.20 km) SSE | Campbeltown Airport (CAL) | Campbeltown, Scotland, United Kingdom | |
| 5 | 71.16 miles (114.52 km) E | Glasgow International Airport (GLA) | Glasgow, Scotland, United Kingdom | |
| 6 | 74.41 miles (119.75 km) ESE | Glasgow-Prestwick Airport (PIK) | Prestwick (near Glasgow), Scotland, United Kingdom | |
| 7 | 78.77 miles (126.77 km) SSW | City of Derry Airport (LDY) | Derry, Northern Ireland, United Kingdom | |
| 8 | 80.85 miles (130.12 km) NW | Barra International Airport (BRR) | Barra, Scotland, United Kingdom | |
| 9 | 96.74 miles (155.68 km) S | Belfast International Airport (BFS) | Belfast, Northern Ireland, United Kingdom | |
| 10 | 100.52 miles (161.76 km) S | George Best Belfast City Airport (BHD) | Belfast, Northern Ireland, United Kingdom | |
| 11 | 107.11 miles (172.37 km) NNW | Benbecula Airport (BEB) | Benbecula, Scotland, United Kingdom | |
| 12 | 107.82 miles (173.51 km) SW | Donegal Airport (CFN) | Carrickfinn, Ireland | |
| 13 | 111.14 miles (178.86 km) E | Edinburgh Airport (EDI) | Edinburgh, United Kingdom | |
| 14 | 113.27 miles (182.30 km) ENE | Perth Airport (PSL) | Perth, Scotland, United Kingdom | |
| 15 | 126.45 miles (203.50 km) ENE | Dundee Airport (DND) | Dundee, Scotland, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,759.43 miles (18,924.92 km) SSE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,730.52 miles (18,878.40 km) SSE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,720.26 miles (18,861.89 km) SSE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,663.59 miles (18,770.68 km) SSE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,661.91 miles (18,767.98 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 6 | 11,643.59 miles (18,738.49 km) SSE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 7 | 11,629.25 miles (18,715.41 km) SSE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,617.08 miles (18,695.83 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 9 | 11,610.00 miles (18,684.44 km) SSE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 10 | 11,592.61 miles (18,656.45 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 11 | 11,582.22 miles (18,639.73 km) SSE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 12 | 11,572.75 miles (18,624.49 km) SSE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,566.75 miles (18,614.83 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 14 | 11,551.03 miles (18,589.54 km) SSE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 15 | 11,506.63 miles (18,518.08 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |