Whats the best website to search multiple dates in leaving and coming back for an airline flight?

Question

i wnat to look at what day is the cheapest not jsut one date

Answer 1

Orbitz.com, lets you search 3 days before and 3 days after, both departure and return.

Answer 2

call the airport they can give you  a web site for the particular airlines you want--or call the ticket counter of a airlines

Answer 3

expedia

travelocity