Nonstop flight route between Gaithersburg, Maryland, United States and Saint-Hubert, Longueuil (near Montreal), Quebec, Canada:
Departure Airport:

Arrival Airport:

Distance from GAI to YHU:
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- About this route
- GAI Airport Information
- YHU Airport Information
- Facts about GAI
- Facts about YHU
- 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 YHU
- List of Nearest Airports to YHU
- Map of Furthest Airports from YHU
- List of Furthest Airports from YHU
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Montréal/Saint-Hubert Airport (YHU), Saint-Hubert, Longueuil (near Montreal), Quebec, Canada would travel a Great Circle distance of 479 miles (or 770 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 Montréal/Saint-Hubert 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: | YHU / CYHU |
Airport Names: |
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Location: | Saint-Hubert, Longueuil (near Montreal), Quebec, Canada |
GPS Coordinates: | 45°31'5"N by 73°25'0"W |
Area Served: | Longueuil, Quebec and Greater Montreal |
Operator/Owner: | DASH-L (Développement Aéroport Saint-Hubert de Longueuil) |
Airport Type: | Public |
Elevation: | 90 feet (27 meters) |
# of Runways: | 3 |
View all routes: | Routes from YHU |
More Information: | YHU 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 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 Montréal/Saint-Hubert Airport (YHU):
- The furthest airport from Montréal/Saint-Hubert Airport (YHU) is Margaret River Airport (MGV), which is located 11,518 miles (18,537 kilometers) away in Margaret River, Western Australia, Australia.
- Montréal/Saint-Hubert Airport (YHU) has 3 runways.
- In addition to being known as "Montréal/Saint-Hubert Airport", another name for YHU is "Aéroport Montréal Saint-Hubert Longueuil".
- Because of Montréal/Saint-Hubert Airport's relatively low elevation of 90 feet, planes can take off or land at Montréal/Saint-Hubert 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.
- Following the new National Airports Policy announced by Transport Canada in 1994, ownership of the airport was transferred to a private corporation, Développement de l'aéroport Saint-Hubert de Longueuil, on 1 September 2004.
- It was here that the body of Quebec Minister of Labour Pierre Laporte was found during the October Crisis of 1970.
- The closest airport to Montréal/Saint-Hubert Airport (YHU) is Cartierville Airport (YCV), which is located only 15 miles (23 kilometers) W of YHU.