Sounds like an odd concept, doesn't it? Well, imagine how many airlines have empty seats to various travel destinations. Now, is it better for them to leave that seat empty or offer a discount to travellers who book a flight? Long story short, they give out that discount. Well, it's funny because sometimes these discounts don't make much sense. It can end up being cheaper to fly across the country to say Florida than it is to fly a quarter of the way. Well, apparently if you do your homework you can make big savings taking advantage of these flights and their corresponding connecting destinations. Let's say you don't want to go to Florida or even Las Vegas, but you do want to go to one of the connecting locations that would be along the way. You can actually do just that. Now, there are a few areas of concern though. You can't have checked baggage as it will arrive in the final destination -- carry on only. Next, more-often the airlines don't like it when passengers do this so you don't want to do it too often or you may get flagged in the system. Outside of that though, you're usually good to go.