Nonstop flight route between St Mary's, Isles of Scilly, United Kingdom and Gaithersburg, Maryland, United States:
Departure Airport:
(49°54'47"N by 6°17'30"W)
Arrival Airport:
(39°10'5"N by 77°9'57"W)
Distance from ISC to GAI:
3,433.92 miles (5,526.34 km)
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- About this route
- ISC Airport Information
- GAI Airport Information
- Facts about ISC
- Facts about GAI
- Map of Nearest Airports to ISC
- List of Nearest Airports to ISC
- Map of Furthest Airports from ISC
- List of Furthest Airports from ISC
- Map of Nearest Airports to GAI
- List of Nearest Airports to GAI
- Map of Furthest Airports from GAI
- List of Furthest Airports from GAI
About this route:
A direct, nonstop flight between St Mary's Airport (ISC), St Mary's, Isles of Scilly, United Kingdom and Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States would travel a Great Circle distance of 3,434 miles (or 5,526 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 Montgomery County Airpark, 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 Montgomery County Airpark. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ISC / EGHE |
| Airport Names: |
|
| Location: | St Mary's, Isles of Scilly, United Kingdom |
| GPS Coordinates: | 49°54'47"N by 6°17'30"W |
| Area Served: | Isles of Scilly |
| Operator/Owner: | Council of the Isles of Scilly |
| Airport Type: | Public |
| Elevation: | 116 feet (35 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ISC |
| More Information: | ISC Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | GAI / KGAI |
| Airport Name: | Montgomery County Airpark |
| Location: | Gaithersburg, Maryland, United States |
| GPS Coordinates: | 39°10'5"N by 77°9'57"W |
| Operator/Owner: | Montgomery County Revenue Authority |
| Airport Type: | Public |
| Elevation: | 539 feet (164 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GAI |
| More Information: | GAI Maps & Info |
Facts about St Mary's Airport (ISC):
- In addition to being known as "St Mary's Airport", other names for ISC include "Isles of Scilly Airport" and "Scilly Isles/St Mary's Airport".
- The current 600m asphalt runway, 15/33, was built in 1991.
- The closest airport to St Mary's Airport (ISC) is Tresco Heliport (TSO), which is located only 3 miles (5 kilometers) NW of ISC.
- St Mary's Airport (ISC) has 2 runways.
- St Mary's Airport handled 89,170 passengers last year.
- On 15 September 1937, Olley Air Service's subsidiary Channel Air Ferries started the first scheduled service between Land's End and St Mary's, flying de Havilland Dragons.
- The furthest airport from St Mary's Airport (ISC) is Dunedin International Airport (DUD), which is nearly antipodal to St Mary's Airport (meaning St Mary's Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,117 miles (19,501 kilometers) away in Dunedin, Otago, New Zealand.
- The terminal at the airport is open all year round whilst the airport is in operation.
- Because of St Mary's Airport's relatively low elevation of 116 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 Montgomery County Airpark (GAI):
- Because of Montgomery County Airpark's relatively low elevation of 539 feet, planes can take off or land at Montgomery County Airpark 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 Montgomery County Airpark (GAI) is Margaret River Airport (MGV), which is located 11,667 miles (18,776 kilometers) away in Margaret River, Western Australia, Australia.
- Montgomery County Airpark (GAI) currently has only 1 runway.
- The closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 2.84 miles (4.57 km) NW | Tresco Heliport (TSO) | Tresco, Isles of Scilly, United Kingdom |     |
| 2 | 30.53 miles (49.13 km) ENE | Land's End Airport (LEQ) | Land's End, Cornwall, England, United Kingdom | |
| 3 | 67.96 miles (109.37 km) ENE | Newquay Cornwall Airport (NQY) | Newquay, England, United Kingdom | |
| 4 | 102.94 miles (165.66 km) ENE | Plymouth City Airport (PLH) | Plymouth, United Kingdom | |
| 5 | 131.88 miles (212.24 km) SE | Brest Bretagne Airport (BES) | Brest, France | |
| 6 | 139.03 miles (223.75 km) ENE | Exeter International Airport (EXT) | Exeter, United Kingdom | |
| 7 | 143.79 miles (231.41 km) SE | Morlaix - Ploujean Airport (MXN) | Morlaix, France | |
| 8 | 144.77 miles (232.98 km) NNE | Haverfordwest Aerodrome (HAW) | Haverfordwest, Wales, United Kingdom | |
| 9 | 150.00 miles (241.40 km) ESE | Lannion - Côte de Granit Airport (LAI) | Lannion, France | |
| 10 | 152.02 miles (244.65 km) NE | Swansea Airport (SWS) | Swansea, Wales, United Kingdom | |
| 11 | 160.86 miles (258.88 km) NNW | Waterford Airport (WAT) | Waterford, Ireland | |
| 12 | 162.04 miles (260.78 km) NE | MoD St Athan (DGX) | St Athan, Wales, United Kingdom | |
| 13 | 164.12 miles (264.13 km) NW | Cork Airport (ORK) | Cork, Ireland | |
| 14 | 164.85 miles (265.30 km) NE | Cardiff Airport (CWL) | Cardiff, Wales, United Kingdom | |
| 15 | 164.99 miles (265.52 km) SE | Quimper - Cornouaille Airport (UIP) | Quimper, France | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,117.14 miles (19,500.60 km) SSE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 12,106.07 miles (19,482.77 km) SE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 3 | 12,090.05 miles (19,457.00 km) SE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 4 | 12,073.92 miles (19,431.04 km) SSE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 5 | 12,054.36 miles (19,399.56 km) SSE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 6 | 12,032.00 miles (19,363.59 km) SSE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 12,026.97 miles (19,355.48 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 8 | 12,021.86 miles (19,347.26 km) SSE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 9 | 12,011.90 miles (19,331.22 km) SSE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 10 | 11,989.48 miles (19,295.15 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 11 | 11,988.83 miles (19,294.11 km) SSE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 12 | 11,984.79 miles (19,287.61 km) SE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 13 | 11,979.92 miles (19,279.76 km) SSE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 14 | 11,958.16 miles (19,244.74 km) SSE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 15 | 11,922.75 miles (19,187.75 km) SSE | Hokitika Airport (HKK) | Hokitika, New Zealand | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 18.42 miles (29.64 km) SE | College Park Airport (CGS) | College Park, Maryland, United States | |
| 2 | 20.51 miles (33.01 km) NNW | Frederick Municipal Airport (FDK) | Frederick, Maryland, United States | |
| 3 | 21.89 miles (35.23 km) WSW | Leesburg Executive Airport (JYO) | Leesburg, Virginia, United States | |
| 4 | 21.93 miles (35.30 km) SW | Washington Dulles International Airport (IAD) | Washington, D.C. / Virginia, United States | |
| 5 | 22.53 miles (36.27 km) ESE | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 6 | 22.90 miles (36.85 km) SSE | Ronald Reagan Washington National Airport (DCA) | Arlington County, Virginia (near Washington, D.C.), United States | |
| 7 | 23.89 miles (38.45 km) SSE | Bolling Air Force Base (BOF) | Washington, D.C., United States | |
| 8 | 26.66 miles (42.91 km) E | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| 9 | 29.46 miles (47.42 km) SSE | Andrews Field (ADW) | Camp Springs, Maryland, United States | |
| 10 | 31.33 miles (50.42 km) S | Davison Army Airfield (DAA) | Fort Belvoir, Virginia, United States | |
| 11 | 35.65 miles (57.38 km) ESE | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 12 | 36.14 miles (58.17 km) SSW | Manassas Regional Airport (HEF) | Manassas, Virginia, United States | |
| 13 | 36.14 miles (58.17 km) SSW | Manassas Regional Airport (MNZ) | Manassas, Virginia, United States | |
| 14 | 41.68 miles (67.08 km) ENE | Martin State Airport (MTN) | Baltimore, Maryland, United States | |
| 15 | 46.66 miles (75.10 km) WNW | Eastern WV Regional Airport (MRB) | Martinsburg, West Virginia, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,666.70 miles (18,775.69 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,643.21 miles (18,737.88 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,626.78 miles (18,711.44 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,618.29 miles (18,697.78 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,569.54 miles (18,619.33 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,562.29 miles (18,607.65 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,557.61 miles (18,600.12 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,547.00 miles (18,583.04 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,531.89 miles (18,558.73 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,512.82 miles (18,528.04 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,450.47 miles (18,427.70 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,417.88 miles (18,375.26 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,407.68 miles (18,358.84 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,401.53 miles (18,348.94 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,328.35 miles (18,231.17 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |