Save on late summer through winter travel with the latest sale from Southwest.

Fares are valid for travel from August 23 through February 15.

Travel to/from San Juan, PR valid September 7 through December 8, and January 17 through March 2.

There is a 14-day advance purchase requirement. Valid on nonstop service only.

Avoid blackout dates: September 2, September 5, November 22-23, November 26-28, December 21-23 and December 25-26, 2016, and January 1-2, 2017.

Tickets must be booked by 11:59pm, August 18.

Sale fares include:

Oakland, CA (OAK) To Reno, NV (RNO) $78 round-trip, nonstop.

Greenville, SC (GSP) To Atlanta, GA (ATL) $93 round-trip, nonstop.

Des Moines, IA (DSM) To St. Louis, MO (STL) $98 round-trip, nonstop.

Grand Rapids, MI (GRR) To Chicago, IL (MDW) $98 round-trip, nonstop.

Wichita, KS (ICT) To St. Louis, MO (STL) $98 round-trip, nonstop.

Indianapolis, IN (IND) To Chicago, IL (MDW) $98 round-trip, nonstop.

Ft. Lauderdale, FL (FLL) To Tampa, FL (TPA) $98 round-trip, nonstop.

Washington, D.C., DC (DCA) To Indianapolis, IN (IND) $98 round-trip, nonstop.

Boise, ID (BOI) To Spokane, WA (GEG) $103 round-trip, nonstop.

Nashville, TN (BNA) To Panama City, FL (ECP) $108 round-trip, nonstop.

Nashville, TN (BNA) To Pensacola, FL (PNS) $108 round-trip, nonstop.

Atlanta, GA (ATL) To Akron, OH (CAK) $108 round-trip, nonstop.

Baltimore, MD (BWI) To Detroit, MI (DTW) $118 round-trip, nonstop.

Indianapolis, IN (IND) to Washington-Reagan, DC (DCA) $118 round-trip, nonstop.

San Jose, CA (SJC) to Portland, OR (PDX) $174 round-trip, nonstop.

Sacramento, CA (SMF) to Boise, ID (BOI) $132 round-trip, nonstop.

Memphis, TN (MEM) to Dallas-Love Field, TX (DAL) $186 round-trip, nonstop.

Newark, NJ (EWR) to Austin, TX (AUS) $194 round-trip, nonstop.

Chicago-Midway, IL (MDW) to Kansas City, MI (MCI) $208 round-trip, nonstop.