Most salons charge between $12.00 and $30.00 for differing combinations of waxing and tweezing.
Laser hair removal is not recommended for eyebrows. Besides, it costs a gazillion dollars!
Electrolysis is permanent, but takes multiple visits. Expect to lay down some cash and be sure to ask for credentials.
Threading is a 5,000 year old method from the middle east. It is similar to tweezing but uses thread instead of tweezers. Basically yanks out individual hairs by tying a knot around them!