Southwest Airlines offers 1-way fares nationwide with prices starting at $49.01. (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 $26. This price is valid on flights departing from Fort Lauderdale, FL, (FLL) on May 2. Book this travel deal by April 23 for travel from April 28 through October 29. Click here to see more routes.