Cheap air travel advice to Europe, please??

I am looking at going to Europe over spring break. Don't care where, just want the cheapest ticket possible. Often, you can buy cheaper tickets by flying to less popular destinations (like Duesseldorf or Manchester), even though you might be laying over in a more popular place, say London or Paris? Would it be good advice to buy a ticket to "WhoKnowsWhere" if it means a layover in one of those hub cities, and then just stay there, not using the third leg of the flight (as long as the same route is taken on the going and returning flights, of course)? Am I crazy? Are they going to charge me a fee for "missing the last leg of the flight" and picking up the return flight at the layover point?

For example, i just found a sale ticket to Munich for $538 pp including taxes. The layover is in London to and from. Could I just skip the London leg and have about 15 more hours of vacation time? A trip to london is probably more like $700 pp.

I always find that SkyScanner
http://europe4vacations.com/cheap-flights/cheap-flights-europe/sky-scanner.html
is great for these kind of questions

Hope you get what you are looking for
Have a great trip

Nope, I asked about the same thing when I went backpacking this summer...there was a roundtrip flight from the u.s. to Munich that connected in London. We wanted to get off in London spend a few days and eventually make our way to Munich for the trip home. They told us that if we didn't reboard in London that we would lose out bags and our return flight would be cancelled. My advice if you are on a budget...get the most reasonable flight you can find into europe then fly easy jet or ryan air to where you want to go...you can find flights on those airlines for 20 euros sometimes. Just be careful because they have stricter weight restrictions on baggage so travel with the least amount of stuf possible.

well, go on skyscanner as smbdy suggested...to find ur cheapest way to europe. once u got to europe, u can find really cheap flights to travel from one country to another - companies like: ryan air, wizzair, easy jet, sky europe.... they have great offers!!!