Originally Posted by
alanR
Best way to score a cheap fare is NOT to have specific dates, don't go to popular places at popular times and book as soon as you feel you've a good fare.
I second that. You should also be able to find cheap fares easily since you'll be traveling in the fall. And just like any other air travel, the fares will be higher for travel on weekends (however, the fare difference for weekend travel on these European budget airlines is normally only about 10-15 quid).