Save on winter/spring travel with the latest sale from Southwest. Fares are valid for travel on Mondays through Thursdays, from December 16 through June 4.

Avoid blackout dates: December 19, 20, 26-29, January 3, February 16, May 21, 22, 25.

Some flights may be operated by AirTran. Tickets must be booked by 11:59pm, December 4.

Fares include:

New York to St Louis $240 round-trip, nonstop

Newark to New Orleans $204 round-trip, nonstop

Atlanta to Philadelphia $226 round-trip, nonstop

Dayton to Orlando $228 round-trip, nonstop

Austin to Ft Lauderdale $200 round-trip, nonstop

Milwaukee to Orlando $226 round-trip, nonstop

Des Moines to Las Vegas $288 round-trip, nonstop

Omaha to Phoenix $264 round-trip, nonstop

Denver to Los Angeles $216 round-trip, nonstop

Los Angeles to San Francisco $146 round-trip, nonstop

San Diego to Seattle $228 round-trip, nonstop

Baltimore to Cleveland $124 round-trip, nonstop

Ft Lauderdale to Indianapolis $274 round-trip, nonstop

Nashville to New York $214 round-trip, nonstop

Chicago to New York $238 round-trip, nonstop

Chicago to Tampa $286 round-trip, nonstop

Chicago to St Louis $202 round-trip, nonstop

Columbus to St Louis $196 round-trip, nonstop

Houston to New York $272 round-trip, nonstop

Houston to Orlando $264 round-trip, nonstop

Southwest image via Shutterstock

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