Nonstop flight route between Gaithersburg, Maryland, United States and Blackwater, Queensland, Australia:
Departure Airport:
(39°10'5"N by 77°9'57"W)
Arrival Airport:
(23°36'11"S by 148°48'24"E)
Distance from GAI to BLT:
9,555.63 miles (15,378.25 km)
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Jump to:
- About this route
- GAI Airport Information
- BLT Airport Information
- Facts about GAI
- Facts about BLT
- 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 BLT
- List of Nearest Airports to BLT
- Map of Furthest Airports from BLT
- List of Furthest Airports from BLT
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Blackwater Airport (BLT), Blackwater, Queensland, Australia would travel a Great Circle distance of 9,556 miles (or 15,378 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 Blackwater 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 Blackwater 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: | BLT / YBTR |
| Airport Name: | Blackwater Airport |
| Location: | Blackwater, Queensland, Australia |
| GPS Coordinates: | 23°36'11"S by 148°48'24"E |
| Operator/Owner: | BHP Billiton Mitsubishi Alliance |
| Airport Type: | Public |
| Elevation: | 657 feet (200 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from BLT |
| More Information: | BLT Maps & Info |
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.
- Montgomery County Airpark (GAI) currently has only 1 runway.
- 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.
- The closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
Facts about Blackwater Airport (BLT):
- Blackwater Airport (BLT) currently has only 1 runway.
- The closest airport to Blackwater Airport (BLT) is Emerald Airport (EMD), which is located 40 miles (64 kilometers) W of BLT.
- Because of Blackwater Airport's relatively low elevation of 657 feet, planes can take off or land at Blackwater 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 Blackwater Airport (BLT) is Agostinho Neto Airport (NTO), which is located 11,844 miles (19,061 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
| 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 | 39.83 miles (64.10 km) W | Emerald Airport (EMD) | Emerald, Queensland, Australia | |
| 2 | 55.63 miles (89.53 km) N | Middlemount Airport (MMM) | Middlemount, Queensland, Australia | |
| 3 | 73.39 miles (118.10 km) NNW | Dysart Airport (DYA) | Dysart, Queensland, Australia | |
| 4 | 94.71 miles (152.41 km) NW | Clermont Airport (CMQ) | Clermont, Queensland, Australia | |
| 5 | 106.80 miles (171.88 km) E | Rockhampton Airport (ROK) | Rockhampton, Queensland, Australia | |
| 6 | 116.43 miles (187.38 km) NNW | Moranbah Airport (MOV) | Moranbah, Queensland, Australia | |
| 7 | 140.79 miles (226.58 km) W | Alpha Airport (ABH) | Alpha, Queensland, Australia | |
| 8 | 153.90 miles (247.68 km) E | Gladstone Airport (GLT) | Gladstone, Queensland, Australia | |
| 9 | 167.05 miles (268.83 km) SSE | Taroom Airport (XTO) | Taroom, Queensland, Australia | |
| 10 | 169.67 miles (273.06 km) N | Mackay Airport (MKY) | Mackay, Queensland, Australia | |
| 11 | 215.37 miles (346.60 km) N | Whitsunday Coast Airport (PPP) | Proserpine, Queensland, Australia | |
| 12 | 220.69 miles (355.16 km) WSW | Blackall Airport (BKQ) | Blackall, Queensland, Australia | |
| 13 | 221.65 miles (356.72 km) W | Barcaldine Airport (BCI) | Barcaldine, Queensland, Australia | |
| 14 | 224.40 miles (361.13 km) N | Great Barrier Reef Airport (HTI) | Hamilton Island, Queensland, Australia | |
| 15 | 224.87 miles (361.90 km) SE | Gayndah Airport (GAH) | Gayndah, Queensland, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,843.97 miles (19,060.97 km) NW | Agostinho Neto Airport (NTO) | Ponta do Sol, Santo Antão, Cape Verde | |
| 2 | 11,822.96 miles (19,027.16 km) NW | Cesária Évora International Airport (VXE) | São Vicente, Cape Verde | |
| 3 | 11,776.84 miles (18,952.94 km) NW | Preguiça Airport (SNE) | São Nicolau, Cape Verde | |
| 4 | 11,722.59 miles (18,865.64 km) NW | Amílcar Cabral International Airport (SID) | Sal Island, Cape Verde | |
| 5 | 11,696.02 miles (18,822.88 km) NW | Mosteiros Airport (MTI) | Mosteiros, Cape Verde | |
| 6 | 11,692.32 miles (18,816.92 km) NW | São Filipe Airport (SFL) | Fogo, Cape Verde | |
| 7 | 11,690.76 miles (18,814.41 km) NW | Aristides Pereira International Airport (BVC) | Boa Vista, Cape Verde | |
| 8 | 11,655.51 miles (18,757.67 km) NW | Maio Airport (MMO) | Maio, Cape Verde | |
| 9 | 11,655.09 miles (18,757.01 km) NW | Praia International Airport (RAI) | Praia, Cape Verde | |
| 10 | 11,534.54 miles (18,563.00 km) WNW | La Palma Airport (SPC) | La Palma, Canary Islands, Spain | |
| 11 | 11,515.89 miles (18,532.98 km) WNW | La Gomera Airport (GMZ) | Alajeró / San Sebastián, Canary Islands, Spain | |
| 12 | 11,514.16 miles (18,530.20 km) W | La Güera Airport (ZLG) | La Güera, Western Sahara | |
| 13 | 11,513.04 miles (18,528.39 km) W | Nouadhibou International Airport (NDB) | Nouadhibou, Mauritania | |
| 14 | 11,477.92 miles (18,471.88 km) WNW | Tenerife-South Airport (TFS) | Tenerife, Canary Islands, Spain | |
| 15 | 11,471.42 miles (18,461.42 km) W | Dakhla Airport (VIL) | Dakhla, Western Sahara | |