It may be the greatest rewards program ever—the travel rewards. Just think about it. These travel rewards credit cards allow you to travel in style after you’ve earned enough points. And the best thing about many of these travel rewards credit cards is that it’s double as easy to earn enough points to travel.

The reason is pretty self-explanatory. For one thing, many of these travel rewards credit cards are put out by the major airline companies. They offer you a program where you can earn premium points every time you use their card to buy tickets on one of their planes. Say they give you two points for every dollar spent on one of their tickets. That’s bonus number one.

Then, these cards usually give you regular bonus points—say, one point for every dollar spent—anytime you make a purchase on any other item, like a night out at a restaurant, a new recliner for the living room, or just a soda and bag of chips at the convenience store. That’s bonus number two.

The third bonus is where it gets really good. That’s because all of these points you’re accumulating usually go straight into your frequent flyer program at the airline. And remember, anytime you fly on one of the company’s planes, the miles you fly are added as points to your frequent flyers account too. That means, essentially, you’re getting double the points every time you use your card to buy a plane ticket for the airline, and then get on the plane.

These cards have become so popular that even online travel sites are getting into the travel rewards credit card business. Their deals may seem a little sweeter if you frequently shop online for the best flight deal and don’t necessarily fly the same airline every time. Some of these new cards also have much lower bars when it comes to earning free stuff. In other words, it may take one-third, or even one-quarter, fewer earned points before you can get free trips or steep discounts.

You best bet is to take advantage of the heated travel rewards credit card business out there, and shop around. Let the credit card companies come to you with the great deals, while you do research on your own for other competing deals. Shop until you find the travel card that will get you the most flights for your spent buck.