Definitely depends on what you get-- however, for basics, Zara is the best place to go for quality/price. Some of the more trendy items tend to be cheaper, while your leather jacket will of course be way more expensive.
The price online is the same as in the store. I do think that Zara asks too much money for some products if you compare it with other stores who have almost the same products. Nevertheless, I still like Zara.