Nonstop flight route between Eastleigh (near Southampton), England, United Kingdom and Gaithersburg, Maryland, United States:
Departure Airport:

Arrival Airport:

Distance from SOU to GAI:
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- About this route
- SOU Airport Information
- GAI Airport Information
- Facts about SOU
- Facts about GAI
- Map of Nearest Airports to SOU
- List of Nearest Airports to SOU
- Map of Furthest Airports from SOU
- List of Furthest Airports from SOU
- 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 Southampton Airport (SOU), Eastleigh (near Southampton), England, United Kingdom and Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States would travel a Great Circle distance of 3,620 miles (or 5,826 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 Southampton 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 Southampton 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: | SOU / EGHI |
Airport Name: | Southampton Airport |
Location: | Eastleigh (near Southampton), England, United Kingdom |
GPS Coordinates: | 50°57'1"N by 1°21'24"W |
Area Served: | Southampton |
Operator/Owner: | Heathrow Airport Holdings |
Airport Type: | Public |
Elevation: | 44 feet (13 meters) |
# of Runways: | 1 |
View all routes: | Routes from SOU |
More Information: | SOU 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 Southampton Airport (SOU):
- Southampton Airport handled 1,722,758 passengers last year.
- Southampton airport only has one main ground handler which is Swissport, who took over from Aviance.
- There are plans, supported by the local council, to rename the airport after R.
- The airport is owned and operated by Heathrow Airport Holdings, which also owns and operates three other UK airports, and is itself owned by FGP TopCo Limited, an international consortium, which includes Caisse de dépôt et placement du Québec and GIC Special Investments, that is led by the Spanish Ferrovial Group.
- Southampton Airport (SOU) currently has only 1 runway.
- Because of Southampton Airport's relatively low elevation of 44 feet, planes can take off or land at Southampton 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.
- During the 1950s a mainstay of business for the airport was the Cross channel car ferry service operated by Silver City Airways using Bristol Freighters and Superfreighters.
- The furthest airport from Southampton Airport (SOU) is Dunedin International Airport (DUD), which is located 11,918 miles (19,179 kilometers) away in Dunedin, Otago, New Zealand.
- The closest airport to Southampton Airport (SOU) is Lasham Airfield (QLA), which is located 22 miles (35 kilometers) NE of SOU.
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.