It depends on a lot of factors - like the size of your house, the type of tiles, how experienced the tiler is, and whether they have to bring in any special tools or equipment. Generally speaking, though, you can expect to pay around $50 per hour for professional tile installation.
It depends on where you live. In some places, a tiler may charge $50/hour, while in others, they may charge $100/hour. It all comes down to the cost of living in that particular area.