Nonstop flight route between Carrickfinn, Ireland and St. Mary's, Alaska, United States:
Departure Airport:
(55°2'39"N by 8°20'27"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from CFN to KSM:
4,232.59 miles (6,811.67 km)
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Jump to:
- About this route
- CFN Airport Information
- KSM Airport Information
- Facts about CFN
- Facts about KSM
- Map of Nearest Airports to CFN
- List of Nearest Airports to CFN
- Map of Furthest Airports from CFN
- List of Furthest Airports from CFN
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Donegal Airport (CFN), Carrickfinn, Ireland and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 4,233 miles (or 6,812 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 Donegal Airport and St. Mary's 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 Donegal Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CFN / EIDL |
| Airport Names: |
|
| Location: | Carrickfinn, Ireland |
| GPS Coordinates: | 55°2'39"N by 8°20'27"W |
| Area Served: | County Donegal |
| Operator/Owner: | Airports Donegal |
| Airport Type: | Public |
| Elevation: | 30 feet (9 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CFN |
| More Information: | CFN Maps & Info |
Arrival 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 |
Facts about Donegal Airport (CFN):
- The furthest airport from Donegal Airport (CFN) is Ryan's Creek Aerodrome (SZS), which is located 11,853 miles (19,076 kilometers) away in Stewart Island, New Zealand.
- Because of Donegal Airport's relatively low elevation of 30 feet, planes can take off or land at Donegal 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.
- Loganair is the only scheduled airline currently using the airport.
- Due to the large gas field in the area, non-scheduled chartered Helicopter flights connect to the multiple offshore installations.
- The closest airport to Donegal Airport (CFN) is City of Derry Airport (LDY), which is located 47 miles (75 kilometers) E of CFN.
- Donegal Airport (CFN) currently has only 1 runway.
- In addition to being known as "Donegal Airport", another name for CFN is "Aerfort Dhún na nGall".
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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 46.68 miles (75.12 km) E | City of Derry Airport (LDY) | Derry, Northern Ireland, United Kingdom |     |
| 2 | 52.40 miles (84.33 km) SSE | Enniskillen/St Angelo Airport (ENK) | Enniskillen, Co Fermanagh, Northern Ireland, United Kingdom | |
| 3 | 53.78 miles (86.55 km) S | Sligo Airport (SXL) | Strandhill (near Sligo), Ireland | |
| 4 | 80.65 miles (129.80 km) SSW | Ireland West Airport Knock (NOC) | Knock, Ireland | |
| 5 | 88.24 miles (142.01 km) SW | Belmullet Aerodrome (BLY) | Belmullet, Ireland | |
| 6 | 88.66 miles (142.68 km) ESE | Belfast International Airport (BFS) | Belfast, Northern Ireland, United Kingdom | |
| 7 | 92.90 miles (149.51 km) ENE | Islay Airport (ILY) | Islay, Scotland, United Kingdom | |
| 8 | 102.55 miles (165.04 km) ESE | George Best Belfast City Airport (BHD) | Belfast, Northern Ireland, United Kingdom | |
| 9 | 107.82 miles (173.51 km) NE | Colonsay Airport (CSA) | Colonsay, Inner Hebrides, Scotland, United Kingdom | |
| 10 | 107.98 miles (173.77 km) ENE | Campbeltown Airport (CAL) | Campbeltown, Scotland, United Kingdom | |
| 11 | 115.66 miles (186.14 km) NNE | Tiree Airport (TRE) | Tiree, Scotland, United Kingdom | |
| 12 | 122.91 miles (197.80 km) SSW | Galway Airport (GWY) | Galway, Ireland | |
| 13 | 126.71 miles (203.92 km) NNE | Coll Island Airport (COL) | Coll, Scotland, United Kingdom | |
| 14 | 133.34 miles (214.60 km) SSW | Connemara Airport (NNR) | Inverin, Ireland | |
| 15 | 139.87 miles (225.10 km) SE | Dublin Airport (DUB) | Dublin, Ireland | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,853.37 miles (19,076.11 km) SSE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,822.88 miles (19,027.03 km) SSE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,803.71 miles (18,996.18 km) S | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,750.03 miles (18,909.80 km) S | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,740.28 miles (18,894.09 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 6 | 11,732.41 miles (18,881.44 km) SSE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 7 | 11,715.71 miles (18,854.56 km) S | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,701.45 miles (18,831.61 km) SSE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 9 | 11,694.39 miles (18,820.25 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 10 | 11,667.02 miles (18,776.20 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 11 | 11,664.26 miles (18,771.76 km) S | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 12 | 11,654.66 miles (18,756.30 km) S | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,637.49 miles (18,728.68 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 14 | 11,633.21 miles (18,721.78 km) S | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 15 | 11,584.30 miles (18,643.08 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| 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 | |