Fare Sales In Europe?
 

Is there a means, via the Internet, to find when European airlines are having specials? I'm looking for any possible deals from Heathrow to Barcelona. It has to be out of Heathrow to LGW or others. Thanks.

To locate budget airlines for your route:
www.whichbudget.com
www.skyscanner.net
www.opodo.co.uk

After you find out which airlines serve the route, you can check their own websites for sales (Ryan Air and Easy Jet usually have their best sales on their own website).

Heathrow-Barcelona is serviced by BA/Iberia.

You'll probably have better luck checking Gatwick-Barcelona which is serviced by both Easyjet and BA/Iberia. Just watch out for Easyjet restrictive luggage allowance etc.

BA having coach and biz class fare sales (book by 23Sep), at least for flights originating in UK.

ttt