It's time for this week's Southwest Airlines sale, this 3-day Nationwide Seat Sale promotes itself for November and December travel, but is actually valid from late August through mid-February 2019. These deals fall in line with Southwest's usually weekly offerings, but with added service for winter travel and new nonstop options, this sale has over 1,100 routes discounted.

Departures are available for Mondays through Thursday and Saturdays from August 21 through February 13, 2019. As expected peak holiday flights are blacked out on August 31, September 3, November 20-21, November 24-26, December 21-23, December 26-27, December 29-30, 2018; January 1-2, 2019. As always, pack all you want because Southwest still flys two checked bags for free.

All tickets must be booked by Thursday, July 26, 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 $94 roundtrip

Providence to Washington DC-DCA $120 roundtrip

Los Angeles to San Francisco $124 roundtrip

Oakland to San Diego $124 roundtrip

San Jose to Reno $130 roundtrip

Cincinnati to Baltimore $134 roundtrip

Salt Lake City to Las Vegas $138 roundtrip

Atlanta to Ft. Lauderdale $156 roundtrip

Chicago-Midway to Detroit $162 roundtrip

Tucson to Los Angeles $166 roundtrip

Boston to Nashville $170 roundtrip

Hartford to Fort Myers $170 roundtrip

New York-LaGuardia to Chicago-Midway $176 roundtrip

Philadelphia to Ft. Lauderdale $182 roundtrip

Minneapolis to Denver $188 roundtrip

Indianapolis to Tampa $202 roundtrip

Denver to San Francisco $206 roundtrip

Milwaukee to New York-LaGuardia $214 roundtrip

Orlando to St. Louis $220 roundtrip