Nonstop flight route between Belmullet, Ireland and St. Mary's, Alaska, United States:
Departure Airport:
(54°13'22"N by 10°1'50"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from BLY to KSM:
4,272.06 miles (6,875.20 km)
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Jump to:
- About this route
- BLY Airport Information
- KSM Airport Information
- Facts about BLY
- Facts about KSM
- Map of Nearest Airports to BLY
- List of Nearest Airports to BLY
- Map of Furthest Airports from BLY
- List of Furthest Airports from BLY
- 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 Belmullet Aerodrome (BLY), Belmullet, Ireland and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 4,272 miles (or 6,875 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 Belmullet Aerodrome 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 Belmullet Aerodrome 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: | BLY / EIBT |
| Airport Name: | Belmullet Aerodrome |
| Location: | Belmullet, Ireland |
| GPS Coordinates: | 54°13'22"N by 10°1'50"W |
| Area Served: | Belmullet, Ireland |
| Operator/Owner: | Comhar Iorrais Teo |
| Airport Type: | Private |
| Elevation: | 150 feet (46 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from BLY |
| More Information: | BLY 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 Belmullet Aerodrome (BLY):
- Belmullet Aerodrome (BLY) currently has only 1 runway.
- Because of Belmullet Aerodrome's relatively low elevation of 150 feet, planes can take off or land at Belmullet Aerodrome 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 Belmullet Aerodrome (BLY) is Ireland West Airport Knock (NOC), which is located 54 miles (86 kilometers) ESE of BLY.
- The furthest airport from Belmullet Aerodrome (BLY) is Ryan's Creek Aerodrome (SZS), which is located 11,924 miles (19,190 kilometers) away in Stewart Island, New Zealand.
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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 53.68 miles (86.40 km) ESE | Ireland West Airport Knock (NOC) | Knock, Ireland |     |
| 2 | 57.93 miles (93.22 km) E | Sligo Airport (SXL) | Strandhill (near Sligo), Ireland | |
| 3 | 72.32 miles (116.38 km) SSE | Connemara Airport (NNR) | Inverin, Ireland | |
| 4 | 77.74 miles (125.11 km) SE | Galway Airport (GWY) | Galway, Ireland | |
| 5 | 78.63 miles (126.54 km) SSE | Inishmore Aerodrome (IOR) | Kilronan, Inishmore, Ireland | |
| 6 | 80.38 miles (129.36 km) SSE | Inishmaan Aerodrome (IIA) | Inishmaan, Ireland | |
| 7 | 82.82 miles (133.28 km) SSE | Inisheer Aerodrome (INQ) | Inisheer, Ireland | |
| 8 | 88.24 miles (142.01 km) NE | Donegal Airport (CFN) | Carrickfinn, Ireland | |
| 9 | 96.65 miles (155.54 km) E | Enniskillen/St Angelo Airport (ENK) | Enniskillen, Co Fermanagh, Northern Ireland, United Kingdom | |
| 10 | 114.50 miles (184.28 km) SSE | Shannon Airport (SNN) | Shannon (County Clare), Ireland | |
| 11 | 127.95 miles (205.91 km) ENE | City of Derry Airport (LDY) | Derry, Northern Ireland, United Kingdom | |
| 12 | 142.64 miles (229.55 km) S | Kerry Airport (KIR) | Tralee, County Kerry, Ireland | |
| 13 | 156.19 miles (251.36 km) ENE | Belfast International Airport (BFS) | Belfast, Northern Ireland, United Kingdom | |
| 14 | 156.40 miles (251.69 km) SE | Kilkenny Airport (KKY) | Kilkenny, Ireland | |
| 15 | 163.05 miles (262.40 km) ESE | Dublin Airport (DUB) | Dublin, Ireland | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,924.28 miles (19,190.21 km) S | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,892.26 miles (19,138.68 km) S | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,863.60 miles (19,092.56 km) S | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,813.63 miles (19,012.14 km) S | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,798.67 miles (18,988.07 km) S | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 6 | 11,795.58 miles (18,983.09 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 7 | 11,779.60 miles (18,957.38 km) S | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,770.70 miles (18,943.06 km) S | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 9 | 11,749.09 miles (18,908.27 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 10 | 11,723.99 miles (18,867.88 km) S | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 11 | 11,719.07 miles (18,859.97 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 12 | 11,714.32 miles (18,852.33 km) S | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,693.30 miles (18,818.50 km) S | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 14 | 11,686.23 miles (18,807.12 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 15 | 11,640.25 miles (18,733.12 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 | |