Frontier Airlines via DealBase discounts select Frontier Airlines Nationwide 1-Way Fares with fares starting from $28.30. (On the DealBase landing page, click on "Frontier Airlines" in the top line to see this sale.) That's the best price we could find for select routes today by at least $5, although we saw fares for $10 less yesterday (since expired). This price is valid on flights departing from Albuquerque, NM, (ABQ) with arrival in Denver, CO, (DEN) on April 10. Book this travel deal by March 9 for travel from April 9 through May 23.

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