Find airline coupon codes at sites such as Groupon and RetailMeNot. These online coupon services compile different deals for discounted airfare and other deals, allowing users to search for savings with different airlines.
Groupon offers a range of deals for discount airline service, CheapOair, including both promo codes and special sales on travel packages. Browsing the site’s coupons, users can book flights at discounted prices or receive specific dollar amounts off of tickets using special promo codes.
RetailMeNot also hosts a selection of deals for many popular airlines, including Alaska, Frontier, Southwest and Spirit. The site allows users to see how many times a coupon has been used and view other users’ tips and comments on specific deals.