Getting the cheapest airfare.

Make sure you do your airfare research. You need to look at all of the online tools, like cheapo air, yahoo travel, cheaptickets.com, travelocity, and expedia. Also don't forget to go directly to the different airline websites. Many of them have their best deals only on their own website, like southwest. Try to book your flight later at night, as this is when they're usually the cheapest.