Southwest Airlines offers 1-way fares on 26 new routes nationwide with prices starting at $79. (Click on "Southwest Airlines" in the top line to see this sale.) That's the lowest price we could find for select routes by $6. This price is valid on flights departing from Washington D.C. (DCA) with arrival in Fort Lauderdale, FL, (FLL) on August 18. Book this travel deal by July 6 for travel from August 9 through December 16. Other notable fares:

Dallas (DAL) to Philadelphia (PHL) from $79

Boston (BOS) to Columbus (CMH) from $89

Salt Lake City (SLC) to Dallas (DAL) from $109

see all available Southwest Airlines fares

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