United Airlines via DealBase offers United Airlines 1-Way Fares Nationwide with prices starting at $42.20. (On the DealBase landing page, click on "United Airlines" in the top line to see this sale. Although the landing page shows fares starting from $49, we found lower prices within.) That's the lowest price we could find for select routes by at least $12. Book this travel deal by July 27 for travel from August 22 through December 16.

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