Forget about paying full-price for travel. These days, American Airlines provides its customers with a handful of promotion codes that can save a significant amount of money, depending on your destination. Sometimes promo codes can be difficult to find, so search high and low for them, while checking websites often for new deals of the day.

Join the AAdvantage Program

Sign up to become part of American Airlines' AAdvantage program and you'll receive regular emails from the company, as well as mail containing promotion codes. Signing up for the program is free and travelers receive their AAdvantage card in the mail within four to six weeks. To use the promotion codes, log on to the American Airlines website and book your flight or other travel arrangement. Then include the code when you enter your payment information.

Check out the American Airlines website

American Airlines sometimes offers promotion codes on its website, so before buying your airfare, take a look to see if you find a code that applies to you. Student travelers are awarded an ongoing promotion code for vacation packages with the airline, with a 5 percent discount on land components of travel. Customers can access this promotion code by visiting the college student section of the website and booking online.

Third-party websites

Try searching third-party websites to use a promotion code with American Airlines and catching a deal on travel. FareCompare (farecompare.com) is a ticket comparison site that features regular coupon codes. Another site to check out is Coupon Chief (couponchief.com) -- this place lists a number of coupon codes where customers can comment and rate on how well they work, so you won't be waste time using a promotion code that isn't valid.

Social Networks

Follow American Airlines on social networks to catch promotion codes. The airline regularly updates both its Twitter (twitter.com/#!/AmericanAir) and Facebook (facebook.com/aa) feeds, advertising special deals you may only see by visiting these pages. Smartphone and tablet application also are available for people on the go to keep up with promotions.