Plane Tickets

How can I get the cheapest airfare online?

I need a round trip ticket from Sacramento, California, to Columbus, Ohio. Instead of being out of the Sacramento location, may also be in San Francisco If you know of discount / promotion codes, which will also help. Thanks

USD266.00 + + Http: / / www.cheapair.com/air/track/?fpid=kulhcmfbb20v0o55wxs3bo45 USD198.00 + + + of the SFO http://www.cheapair.com/air/track/?fpid=vegggqy3vfko5g45eutu2b45 Please check: Tips: Use flexible dates b-use alternative airports http://www.hotwire.com/ http://www.cheapoair.com/ http://www.kayak.com/ http://www . / Orbitz.com http://www.priceline.com/ http://www.expedia.com/default.asp http://www.farecompare.com/ http://www.cfares.com/