If you're going on vacation, there's a good chance you're going to fly. It's still the fastest way to go long distances, at least until Elon Musk comes through with a finished Hyperloop, or Richard Branson's Virgin Galactic gets sub-orbital rockets up and running.
Unfortunately, flying is expensive. That's why you go to great lengths to get the cheapest flight possible. And there are plenty of ways to do that.
You can book your flight early and make sure you're buying on the right day of the week. And you can make sure you fly on a day and time that traditionally costs less. You can also make sure you know which airline has the cheapest tickets. Click here for more on the best days and times to buy and fly.
However, in your rush to save, you might find that the "cheapest flight" isn't always the "best flight." I've seen this happen to many of my friends and family.