Nonstop flight route between Gaithersburg, Maryland, United States and Alderney, Channel Islands, United Kingdom:
Departure Airport:
(39°10'5"N by 77°9'57"W)
Arrival Airport:
(49°42'24"N by 2°12'51"W)
Distance from GAI to ACI:
3,611.58 miles (5,812.26 km)
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Jump to:
- About this route
- GAI Airport Information
- ACI Airport Information
- Facts about GAI
- Facts about ACI
- Map of Nearest Airports to GAI
- List of Nearest Airports to GAI
- Map of Furthest Airports from GAI
- List of Furthest Airports from GAI
- Map of Nearest Airports to ACI
- List of Nearest Airports to ACI
- Map of Furthest Airports from ACI
- List of Furthest Airports from ACI
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Alderney Airport (ACI), Alderney, Channel Islands, United Kingdom would travel a Great Circle distance of 3,612 miles (or 5,812 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 Montgomery County Airpark and Alderney 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 Montgomery County Airpark and Alderney Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | ACI / EGJA |
| Airport Name: | Alderney Airport |
| Location: | Alderney, Channel Islands, United Kingdom |
| GPS Coordinates: | 49°42'24"N by 2°12'51"W |
| Area Served: | Alderney |
| Operator/Owner: | States of Guernsey |
| Airport Type: | Public |
| Elevation: | 290 feet (88 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from ACI |
| More Information: | ACI Maps & Info |
Facts about Montgomery County Airpark (GAI):
- Montgomery County Airpark (GAI) currently has only 1 runway.
- 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 closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
- 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.
Facts about Alderney Airport (ACI):
- Alderney Airport (ACI) has 3 runways.
- Alderney has self manoeuvring stands.
- The closest airport to Alderney Airport (ACI) is Guernsey Airport (GCI), which is located 26 miles (41 kilometers) SW of ACI.
- The furthest airport from Alderney Airport (ACI) is Dunedin International Airport (DUD), which is located 11,999 miles (19,310 kilometers) away in Dunedin, Otago, New Zealand.
- Because of Alderney Airport's relatively low elevation of 290 feet, planes can take off or land at Alderney 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 book documents a previously unpublicised aspect of the island's history, was published by Amberley Publishing in summer 2010.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 25.58 miles (41.17 km) SW | Guernsey Airport (GCI) | Guernsey, Channel Islands, United Kingdom | |
| 2 | 33.27 miles (53.54 km) E | Cherbourg - Maupertus Airport (CER) | Cherbourg, France | |
| 3 | 34.46 miles (55.46 km) S | Jersey Airport (JER) | Jersey, Channel Islands, United Kingdom | |
| 4 | 75.96 miles (122.24 km) NNE | Bournemouth Airport (BOH) | Bournemouth, England, United Kingdom | |
| 5 | 77.55 miles (124.80 km) S | Dinard–Pleurtuit–Saint-Malo Airport (DNR) | Dinard, France | |
| 6 | 83.03 miles (133.62 km) NE | Bembridge Airport (BBP) | Bembridge, Isle of Wight, United Kingdom | |
| 7 | 85.84 miles (138.15 km) SSW | Saint-Brieuc - Armor Airport (SBK) | Saint-Brieuc, France | |
| 8 | 86.96 miles (139.95 km) SW | Lannion - Côte de Granit Airport (LAI) | Lannion, France | |
| 9 | 87.42 miles (140.68 km) ESE | Caen la Mer Airport (CFR) | Caen, France | |
| 10 | 88.62 miles (142.62 km) NW | Exeter International Airport (EXT) | Exeter, United Kingdom | |
| 11 | 93.88 miles (151.09 km) NNE | Southampton Airport (SOU) | Eastleigh (near Southampton), England, United Kingdom | |
| 12 | 97.39 miles (156.73 km) WNW | Plymouth City Airport (PLH) | Plymouth, United Kingdom | |
| 13 | 102.33 miles (164.68 km) NE | Chichester/Goodwood Airport (QUG) | Chichester, England, United Kingdom | |
| 14 | 103.75 miles (166.97 km) E | Le Havre - Octeville Airport (LEH) | Le Havre, France | |
| 15 | 105.26 miles (169.40 km) SW | Morlaix - Ploujean Airport (MXN) | Morlaix, France | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,998.89 miles (19,310.29 km) ESE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 11,983.68 miles (19,285.81 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 3 | 11,952.46 miles (19,235.58 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 4 | 11,951.77 miles (19,234.46 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,946.97 miles (19,226.73 km) SW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 6 | 11,946.23 miles (19,225.54 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 7 | 11,944.17 miles (19,222.23 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 8 | 11,940.37 miles (19,216.11 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 9 | 11,936.42 miles (19,209.76 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 10 | 11,908.97 miles (19,165.58 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,904.45 miles (19,158.31 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,897.23 miles (19,146.69 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,895.41 miles (19,143.75 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,889.96 miles (19,134.99 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,869.83 miles (19,102.60 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |