Update: Some offers mentioned below are no longer available. View the current offers here.Frontier Airlines is having a two-day sale, with one-way flights starting at $29 for its new routes from Atlanta, GA; Cincinnati, OH; Indianapolis, IN; Washington-Dulles and more for select dates this summer. The promotion runs today through tomorrow, May 29, 2015.Frontier is offering a two-day sale with $29 fares.If you’re looking for a quick summer getaway, you might want to give the sale a look. Just be sure to book sooner than later, as fares have sold out rather quickly during the past several Frontier sales.Head from Atlanta to Indianapolis for $29 one-way this summer.Tickets must be purchased by 11:59 pm Eastern time on May 29, 2015 for domestic, nonstop travel on select dates between June 2 and August 12, 2015.Maximize Your SpendingWhile Frontier may not be a part of a major alliance and these cheap flights won’t help toward any major elite status, you can still earn extra credit card points by using a card that maximizes airfare purchases, like 3x on airfare with the American Express Premier Rewards Gold or 2x on the Chase Sapphire Preferred. Check out this post for more on maximizing airfare purchases.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Report your success if you snag any of these!