cheapest airline ticket

 What is the cheapest time of day to buy an airline ticket?

Here is a trick I learned from my brother, who flies a LOT. If you go to a website to look at fares, then leave that website, and then come back, the price will have gone up significantly. It knows (through cookies) that you really want that ticket, and that you aren't using any other sites. We tried it, and it was absolutely true. So, here is what he does. You can either clear your cookies and cache before you go back, or just use a different browser.

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