Frontier Airlines via DealBase discounts Frontier Airlines Nationwide 1-Way Fares, for $19.98. (On the DealBase landing page, click on "Frontier Airlines" in the top line to see this sale.) That's among the lowest prices we've seen for flights on Frontier, and a very low price for summer airfare in general. (It's the lowest price we could find for select routes today by at least $5, although most airlines charge $89 or more.) This price is valid on flights departing from Atlanta, GA, (ATL) with arrival in Austin, TX, (AUS) on August 23 26. This sale also features flights to Denver, CO, (DEN); Los Angeles, CA, (LAX); Las Vegas, NV, (LAS); and more. Book this travel deal by July 6 for travel from August 15 through October 4.

All prices, dates, and booking details were valid at the time of publication.