Ending today, Frontier Airlines via DealBase offers 1-way nationwide flights with prices starting from $19.30. That's the lowest price we could find for select routes by at least $5. Book this travel deal today for travel on select days from August 13 through November 12. Shop Now Tips On the DealBase landing page, click "xxxx" in the top line to see this sale. We found this price on flights departing from Cleveland, OH (CLE) with arrival in Minneapolis, MN (MSP) on September 18. All prices, dates, and booking details were valid at the time of publication.