Nonstop flight route between Gaithersburg, Maryland, United States and Lansdowne House, Ontario, Canada:
Departure Airport:
(39°10'5"N by 77°9'57"W)
Arrival Airport:
(52°11'44"N by 87°56'3"W)
Distance from GAI to YLH:
1,036.87 miles (1,668.68 km)
Share this route:
Jump to:
- About this route
- GAI Airport Information
- YLH Airport Information
- Facts about GAI
- Facts about YLH
- 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 YLH
- List of Nearest Airports to YLH
- Map of Furthest Airports from YLH
- List of Furthest Airports from YLH
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Lansdowne House Airport (YLH), Lansdowne House, Ontario, Canada would travel a Great Circle distance of 1,037 miles (or 1,669 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 relatively short distance between Montgomery County Airpark and Lansdowne House Airport, the route shown on this map most likely still appears to be a straight line.
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: | YLH / CYLH |
| Airport Name: | Lansdowne House Airport |
| Location: | Lansdowne House, Ontario, Canada |
| GPS Coordinates: | 52°11'44"N by 87°56'3"W |
| Operator/Owner: | Government of Ontario |
| Airport Type: | Public |
| Elevation: | 834 feet (254 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YLH |
| More Information: | YLH 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.
- The closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
- 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.
Facts about Lansdowne House Airport (YLH):
- The furthest airport from Lansdowne House Airport (YLH) is Margaret River Airport (MGV), which is located 10,735 miles (17,277 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Lansdowne House Airport (YLH) is Fort Hope Airport (YFH), which is located 44 miles (70 kilometers) S of YLH.
- Lansdowne House Airport (YLH) currently has only 1 runway.
- Because of Lansdowne House Airport's relatively low elevation of 834 feet, planes can take off or land at Lansdowne House 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 | 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 | 43.79 miles (70.48 km) S | Fort Hope Airport (YFH) | Fort Hope, Ontario, Canada | |
| 2 | 57.76 miles (92.96 km) NNE | Webequie Airport (YWP) | Webequie, Ontario, Canada | |
| 3 | 94.23 miles (151.65 km) ESE | Ogoki Post Airport (YOG) | Ogoki Post, Ontario, Canada | |
| 4 | 96.48 miles (155.27 km) NNW | Kasabonika Airport (XKS) | Kasabonika First Nation, Ontario, Canada | |
| 5 | 98.40 miles (158.37 km) NW | Kingfisher Lake Airport (KIF) | Kingfisher Lake, Ontario, Canada | |
| 6 | 110.27 miles (177.46 km) WSW | Pickle Lake Airport (YPL) | Pickle Lake, Ontario, Canada | |
| 7 | 138.24 miles (222.47 km) SSW | Armstrong Airport (YYW) | Armstrong, Thunder Bay District, Ontario, Canada | |
| 8 | 138.63 miles (223.10 km) NW | Big Trout Lake Airport (YTL) | Big Trout Lake, Ontario, Canada | |
| 9 | 149.00 miles (239.79 km) SSE | Nakina Airport (YQN) | Nakina, Ontario, Canada | |
| 10 | 150.98 miles (242.97 km) WNW | Round Lake (Weagamow Lake) Airport (ZRJ) | Round Lake, Ontario, Canada | |
| 11 | 168.74 miles (271.55 km) W | Cat Lake Airport (YAC) | Cat Lake, Ontario, Canada | |
| 12 | 172.51 miles (277.63 km) SSE | Geraldton (Greenstone Regional) Airport (YGQ) | Geraldton, Ontario, Canada | |
| 13 | 177.27 miles (285.29 km) NW | Bearskin Lake Airport (XBE) | Bearskin Lake, Ontario, Canada | |
| 14 | 181.53 miles (292.15 km) WNW | Muskrat Dam Airport (MSA) | Muskrat Dam, Ontario, Canada | |
| 15 | 212.24 miles (341.57 km) NW | Sachigo Lake Airport (ZPB) | Sachigo Lake, Ontario, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,735.47 miles (17,277.03 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,719.42 miles (17,251.19 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,711.84 miles (17,238.99 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 10,698.55 miles (17,217.61 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 5 | 10,685.20 miles (17,196.12 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,636.14 miles (17,117.16 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,611.23 miles (17,077.08 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,605.44 miles (17,067.76 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,593.61 miles (17,048.72 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,526.85 miles (16,941.29 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,485.87 miles (16,875.34 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 10,447.34 miles (16,813.32 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,431.73 miles (16,788.19 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,403.74 miles (16,743.15 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,393.44 miles (16,726.57 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |