United Airlines via DealBase offers select United Airlines 1-Way Fares Nationwide with prices starting from $55.30. (On the DealBase landing page, click on "United Airlines" in the top line to book.) This price is valid on flights from San Francisco, CA, (SFO) with arrival in Las Vegas, NV, (LAS) on February 19. That's the lowest price we could find for select routes by $19. Book this travel deal by January 25 for travel from January 23 through May 23.

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