Nonstop flight route between London, England, United Kingdom and Carlsbad, California, United States:

About this route:

A direct, nonstop flight between London Heathrow Airport (LHR), London, England, United Kingdom and McClellan–Palomar Airport (CLD), Carlsbad, California, United States would travel a Great Circle distance of 5,453 miles (or 8,775 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 London Heathrow Airport and McClellan–Palomar 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 London Heathrow Airport and McClellan–Palomar 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 London Heathrow Airport (LHR):

• Until 2008, air traffic between Heathrow and the United States was strictly governed by the countries' bilateral Bermuda II treaty.
• London Heathrow Airport (LHR) has 2 runways.
• The closest airport to London Heathrow Airport (LHR) is RAF Northolt (NHT), which is located only 6 miles (9 kilometers) NNE of LHR.
• The original Terminal 2 building was the airport's oldest terminal, opening as the Europa Building in 1955.
• A trial of "noise relief zones" ran from December 2012 to March 2013, which concentrated approach flight paths into defined areas compared with the existing paths which were spread out.
• 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.
• 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.
• 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.
• Along with Gatwick, Stansted, Luton, Southend and London City, Heathrow is one of six airports with scheduled services serving the London area, although only Heathrow and London City are within Greater London.

Facts about McClellan–Palomar Airport (CLD):

• McClellan–Palomar Airport (CLD) currently has only 1 runway.
• The furthest airport from McClellan–Palomar Airport (CLD) is Sir Gaëtan Duval Airport (RRG), which is located 11,512 miles (18,527 kilometers) away in Rodrigues Island, Mauritius.
• Because of McClellan–Palomar Airport's relatively low elevation of 331 feet, planes can take off or land at McClellan–Palomar 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 closest airport to McClellan–Palomar Airport (CLD) is Bob Maxwell Field (Oceanside Municipal Airport) (OCN), which is located only 7 miles (12 kilometers) NNW of CLD.
• In addition to being known as "McClellan–Palomar Airport", another name for CLD is "CRQ".
• The airport is named for Gerald McClellan, an aviator and civic leader in San Diego's North County area.