Frontier Airflines Flights as low as $15!!!! RUN~ Frontier Airlines is currently offering a Penny Plus Fares Sale on Select One-Way Flights! Flights are priced starting from $15. Varies by selected date/route, with limited seats available. Valid for travel on Tuesday or Wednesday only through 11/15/2017. If you see a flight you want, book it ASAP! BROWSE FLIGHTS HERE Thanks View Post