Ending today, United Airlines via DealBase offers select United Airlines 1-Way Fares Nationwide with prices starting at $28.10. (On the DealBase landing page, click on "United Airlines" in the top line to see this sale; although this sale only mentions specific routes, we found additional routes within.) That's tied with last week's mention as an all-time low for any United Airlines flights and even beats budget airlines like Spirit. It's also the lowest price we could find by at least $10. This price is valid on flights departing from San Francisco, CA, (SFO) with arrival in Las Vegas, NV, (LAS) on January 7, 2017. This sale includes flights to Chicago, IL, (ORD); New Orleans, LA, (MSY); Newark, NJ, (EWR); Austin, TX, (AUS); and more. Book this travel deal by December 1 for travel through May 8, 2017.

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