Spirit Airlines via ShermansTravel offers Spirit Airlines 1-Way Flights Nationwide from as low as $30.19. (On the ShermansTravel landing page, click "Spirit.com" in the top line to see this sale.) That's the lowest price we could find by at least $5. This price is valid on flights from Dallas, TX, (DFW) with arrival in Las Vegas, NV, (LAS) on January 16, 2019. Blackout dates apply. Book this travel deal by December 31. All prices, dates, and booking details were valid at the time of publication.