cheapest way to travel

Cheapest way to travel from london to europe then to other european countries. is it cheaper to fly or train. how much is the average price of a flight

It would probably be cheaper to get a youth train pass.
Flights can range from £40 upwards. Depends on where you want to go. Look at www.ryanair.com and www.easyjet.com and www.skyeurope.com for prices.

It depends on where and when you want to travel. There must be thousands of combinations of travel.

What bill said.

If you can give some idea of number of time-scale and where you want to go, we might be able to help, as it is... who knows?!