Southwest Airlines via DealBase discounts Southwest Airlines 1-Way Fares Nationwide with prices starting at $48.98. (On the DealBase landing page, click on "Southwest Airlines" in the top line to see this sale.) That's tied with last week's mention and the lowest price we could find for select routes by $143. This price is valid on flights departing from Greenville/Spartanburg, SC, (GSP) with arrival in Atlanta, GA, (ATL) on April 12. Book this travel deal by January 25 for travel through May 25. Other notable fares:

Austin (AUS) to Fort Lauderdale (FLL) from $53.98

New York (LGA) to Nashville (BNA) from $117.98

see all available Southwest Airlines fares

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