Frontier Airlines via DealBase offers 1-way nationwide flights with prices starting from $28.30. That's the lowest price we could find for select routes by $5. Book this travel deal by July 31 for travel through August 28. Buy Now Tips On the DealBase landing page, click "Frontier Airlines" in the top line to see this sale; we found lower fares within. We found this price on flights departing on August 6 from Austin, TX (AUS) to New Orleans, LA (MSY). All prices, dates, and booking details were valid at the time of publication.