Southwest Airlines via DealBase discounts select Southwest Airlines 1-Way Fares Nationwide, with prices starting at $43.99. (On the DealBase landing page, click on "Southwest Airlines" in the top line to see this sale.) That's the lowest price we could find for select routes by at least $14. This price is valid for flights departing on March 14 from Boise, ID, (BOI), with arrival in Spokane, WA, (GEG). Note that blackout dates and other conditions may apply. Book this travel deal by February 15 for travel from March 6 through May 17.

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