Spirit Airlines via DealBase offers Spirit Airlines 1-Way Midweek Flights Nationwide with prices starting at $40.20. (On the DealBase landing page, click on "Spirit Airlines" in the top line to see this sale.) That's tied with our mention from three weeks ago as the lowest price we could find for select routes by at least $6. This price is valid on flights departing from Las Vegas, NV, (LAS), with arrival in San Diego, CA, (SAN) on June 6. This sale includes 149 routes, including flights to Los Angeles, CA, (LAX); Chicago, IL, (ORD); Orlando, FL, (MCO); Philadelphia, PA, (PHL); and more. Book this travel deal by May 12 for travel on Tuesdays or Wednesdays from May 18 through November 8.

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