The above map shows the flight paths for HEATHROW in 2011.
Red lines denote domestic routes, blue lines international ones. The width of the lines can be set by percentage of total emissions (the default), or percentage of passengers, or be made constant. Where the value is less than 1% the line becomes fainter.
For emissions, note that this does not take into account non-passenger air movements or any factors that would make emissions on a given route higher than normal (per passenger mile). For airports with large amounts of freight or non-commercial aviation the numbers will be higher than this total. The emissions value does not take into account any non-carbon dioxide or altitude factors which would in fact increase the climate changing effect by 2 to 4 times. To see the previous year's statistics, click here
Routes with the higher passengers may not have the highest number of flights, depending on the size and fullness of the planes involved.

Summary Statistics

Statistic

Value

Total destinations224
% domestic destinations4.46%
Total passengers68609070
% domestic passengers6.86%
% passengers < 500 miles23.13%
% passengers < 1000 miles41.51%
% passengers < 2000 miles47.37%
Total passengers in previous year65742892
Growth year on year %4.36%
Total emissions (tonnes CO2)13700101.86
% emissions from domestic flights0.78%

Top 10 destinations by passengers:

Destination

Passengers

% of Total

NEW YORK (JF KENNEDY)26789913.90%
DUBAI18895132.75%
DUBLIN15561022.27%
FRANKFURT MAIN14699042.14%
HONG KONG (CHEP LAP KOK)14127492.06%
AMSTERDAM14070832.05%
LOS ANGELES INTERNATIONAL12991181.89%
PARIS (CHARLES DE GAULLE)12723491.85%
EDINBURGH12714591.85%
CHICAGO (O'HARE)12074241.76%
Total of top 101546469222.54%

Top 10 destinations by emissions:

Destination

CO2 emissions (tonnes)

% of Total

NEW YORK (JF KENNEDY)691764.795.05%
HONG KONG (CHEP LAP KOK)634154.794.63%
SYDNEY553817.744.04%
SINGAPORE542645.643.96%
LOS ANGELES INTERNATIONAL530442.933.87%
DUBAI484242.523.53%
SAN FRANCISCO371750.762.71%
CHICAGO (O'HARE)357035.462.61%
JOHANNESBURG355463.872.59%
MUMBAI319688.432.33%
Total of top 104841006.9235.34%

Below is the latest data from the Civil Aviation Authority (CAA) base upon a passenger survey at HEATHROW in 2010.