Global flight paths in pictures
bbc.co.uk
bbc.co.uk
e.g. I thought that flights over the Atlantic travel via different routes depending on whether they are going east or west, to take advantage of the prevailing winds. Or maybe they just alter their height? Does anyone know?
A quick bit of web searching doesn't seem to give the answer to the data on these pictures; apparently they are from http://openflights.org/ but it's not clear if that data is 'just' lines between destinations or the actual waypoints of the planes.
If you zoom in at one of Aaron's visualizations - especially close to an airport - you can see the redirects, loops and alternative approaches that the air traffic controllers directed planes to.