Cheap Flight International - Where is the best place to book airline tickets online?

Where is the best place to book airline tickets online?

For booking airline tickets at the best rates online.... Can anyone recommend a good site?

I use kayak.com because it searches everything...all airline websites, orbitz, priceline etc etc are all there. If you're a student then studentuniverse.com is a good one too. Hope this helps!
I would check the actual airlines website first, as you will quite often find that they save the cheaper deals for themselves.
For the first time I bought tickets from Jet Blue airlines online and i'm very pleased. Not only by the service, but by the prices as well.
It depends on where you are flying. A lot of times many Airlines will have a cheaper rate on their website. If there is a Southwest available you can check with them. It also depends on what day you are leaving. You can find cheaper rates in mid-week as oppose to weekends. A site that I have used before was travelocity.com. Look around and you will find a great rate. You can also check with a booking agency.
cheapoair.com is the best for airline tickets online! Check it out! Most tickets are like $165+tax a person!
http://www.smartaligator.com/flights2.html