Frontier Airlines is known for providing low cost airfare on flights to destinations all over the United States. Based in Denver, Colorado, over 90 percent of the airline's flights originate from or land in Denver International Airport. You can save money on already-cheap plane tickets by using the coupon codes, discounts and promotional deals in this page of Frontier Airlines coupons.

Flights on Frontier may be booked in several ways. Travelers may go directly through the airline website, FrontierAirlines.com to purchase tickets, or they may also visit travel websites such as cheaptickets.com or travellation.com. Coupon codes generally must be used on the Frontier website, but it may be possible to find a lower rate elsewhere so shopping around is certainly recommended before making your final purchase.

Special savings and promotional offers for specific destinations or travel dates are regularly available on Frontier's website. Check regularly for the latest deals. In addition, coupon codes for online booking are available on various outside websites (two to try are RetailMeNot and Coupon Mountain). Most coupons have expiration dates, and come with restrictions. Read each offer carefully before booking your flight. Often, the best deals are found on the Frontier Airlines official website.

If you are booking an entire vacation package, you ay be able to get the best overall deal by using a discount travel website rather than booking your tickets directly with Frontier Airlines. Some to try are kayak.com, expedia.com, orbitz.com and travelocity.com. Before booking through any other site, however, be sure to check the prices on the Frontier site as well so that you can compare and receive the best possible fare.