On A Clear Day Like Today The Sky Above Belfast Was Streaked With Vapour Trails From Jets...

[sandyRoe]

...travelling east to west. Are we under a flight path from Europe to the USA?

[vulcan]

This doesn't necessarily answer your question sandy but you might find it interesting. The positions of aircraft are updated every few seconds and if you click on any aircraft it will give flight details.
http://www.flightradar24.com/

[excelsior-1]

vulcan

that is a fascinating site

when we go on holiday in july, i shall show that site to my god-daughter on her gadget .. she will love tracking the aircraft she is aboard

[Psybbo]

Brilliant site, thank you vulcan

[spudqueen]

I've flown over Belfast on a flight to the USA from Manchester, so yes, probably.

[237SJ]

Yes. Probably aircraft overflying the UK on their way to North America.

[zebo]

Planefinder is another good site.

[jno]

I've not flown over Belfast when flying west out of London; but it's rumoured that there are other airports not in London.

[theshedman]

Yes the one zebo said is quite good Planefinder, here is the link for it.

http://planefinder.net/