All depends how you do it man. I will tell you what I did so you can have an idea. I went to Switzerland this summer to ski on the glacier.
Buy your round trip using a travel website.Scope for good deals! Can't be picky- Expedia- Vancouver to Zurich Switzerland 1400 round trip.
Get a place on hill, try to tell the people how broke you are and try to get a deal. A buddy and I got an apartment for 3 weeks for 400 each. Having an apartment is key because you can cook your own food.
Buy no name food. Switzerland is hilarious, 1litre of no name cola is like 0.60franks. a 500ml bottle of coke is like 3.50 franks. Buy no name, and eat as inexpensive as possible.
Purchase travel insurance. I ruptured a muscle in my shin and tore some ligaments in my ankle. 1 visit to the doctor = 700 candian dollars. If you are covered through work or buy it. Don't assume you won't get hurt.
If you can barely afford to go... you can't go. Shit happens, and even if you budget, you will end up needing to spend a couple hundred extra on various things.