I'm assuming you do in fact mean LASEK and not LASIK. LASEK usually runs around $1500 to $2000 per eye. You can find places that advertise the procedure for much less than this, but this is false advertising as the price will be much higher (after hidden fees). If you mean LASIK, it will run around $2000 to $2500. Within these price ranges, there are options, such as using Wavefront (which is results in better accuracy) that can increase the price by $500 or so.
But remember, you're dealing with your eyes here. Finding the cheapest place may not necessarily be the best choice.