Nonstop flight route between Gaithersburg, Maryland, United States and London, England, United Kingdom:

About this route:

A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and London Heathrow Airport (LHR), London, England, United Kingdom would travel a Great Circle distance of 3,645 miles (or 5,866 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 London Heathrow 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 London Heathrow Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Montgomery County Airpark (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.
• 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.

Facts about London Heathrow Airport (LHR):

• Air traffic controllers at Heathrow Approach Control then guide the aircraft to their final approach, merging aircraft from the four holds into a single stream of traffic, sometimes as close as 2.5 nautical miles apart.
• The airport holds a Civil Aviation Authority Public Use Aerodrome Licence, which allows flights for public transportation of passengers or for flying instruction.
• Because of London Heathrow Airport's relatively low elevation of 83 feet, planes can take off or land at London Heathrow 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 London Heathrow Airport (LHR) is Chatham Islands (CHT), which is located 11,875 miles (19,112 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In the 1950s, Heathrow had six runways, arranged in three pairs at different angles in the shape of a hexagram with the permanent passenger terminal in the middle and the older terminal along the north edge of the field, and two of its runways would always be within 30° of the wind direction.
• London Heathrow Airport (LHR) has 2 runways.
• London Heathrow Airport or Heathrow is a major international airport serving London, England, known as London Airport from 1946 until 1965.
• When runway alternation was introduced, aircraft generated significantly more noise on departure than when landing, so a preference for westerly operations during daylight was introduced, which continues to this day.
• Heathrow Airport started in 1929 as a small airfield on land south-east of the hamlet of Heathrow from which the airport takes its name.
• The closest airport to London Heathrow Airport (LHR) is RAF Northolt (NHT), which is located only 6 miles (9 kilometers) NNE of LHR.
• With only two runways, operating at over 98% of their capacity, Heathrow has little room for more flights, although the increasing use of larger aircraft such as the Airbus A380 will allow some increase in passenger numbers.
• Heathrow airport has its own resident press corps, consisting of six photographers and one TV crew, serving all the major newspapers and television stations around the world.
• Until it was required to sell Gatwick and Stansted Airports, Heathrow Airport Holdings held a dominant position in the London aviation market, and has been heavily regulated by the Civil Aviation Authority as to how much it can charge airline to land.