Southwest Airlines is having a busy week with three different sales released today. This one is for their Nationwide Seat Sale that is valid for travel in late summer and fall months. This sale falls in line with Southwest's usually weekly offerings, but the prices in this sale are much better than the ones from previous weeks. No flight listed in this latest discount offer is more than $198 roundtrip, with many fares ringing in at $118 roundtrip.

Seats are available on Tuesdays and Wednesdays, (but other days may be available) from August 13 through December 19, 2018. Flights are blacked out on August 31, September 3, November 20-21 & November 24-26, 2018. As always, pack all you want because Southwest still flys two checked bags for free.

All tickets must be booked by Friday, June 29, 2018, at 11:59 pm.

Please note, these fares are only available on Southwest.com. Other carriers regularly match these sale fares, so be sure to compare to find the best deal.

Sample nonstop sale fares include:

Las Vegas to Long Beach $90 roundtrip

Oakland to Las Vegas $118 roundtrip

Atlanta to Nashville $118 roundtrip

Indianapolis to Chicago-Midway $118 roundtrip

San Jose to Reno $118 roundtrip

Milwaukee to Cleveland $134 roundtrip

Phoenix to El Paso $138 roundtrip

Salt Lake to Los Angeles $152 roundtrip

Chicago-Midway to Kansas City $164 roundtrip

San Antonio to New Orleans $166 roundtrip

Ontario, CA to Portland, OR $172 roundtrip

Ft. Lauderdale to Washington DC-Dulles $174 roundtrip

Boston to Indianapolis $174 roundtrip

Newark to Orlando $180 roundtrip

Buffalo to Ft. Lauderdale $180 roundtrip

Kansas City to Austin $186 roundtrip

Minneapolis to Denver $188 roundtrip

Atlanta to Milwaukee $198 roundtrip

Houston-Hobby to Memphis $198 roundtrip