Southwest Airlines' sale is here a day early! Every once in a while the carrier likes to give flyers a jump start on their weekly sale and, instead of the usual Tuesday morning listing, you get an extra day of deals.

This latest 4-day spring sale kicks off with airfares starting as low as $78 roundtrip or just $39 one-way. A bit less than previous deals on spring travel.

Fares are valid for travel on Tuesdays, Wednesdays, and Saturdays starting in April through June 12, 2019. Travel around Memorial Day weekend is blacked out with sale flights unavailable on May 23-24, and 27.

Departures to Vegas and select Florida airports are available Sunday through Wednesday and travel from Nevada, and Florida is valid Tuesday through Friday.

All tickets must be purchased by Thursday, March 14, 2019, at 11:59 pm ET or local time.

Sample nonstop sale fares include:

Burbank to San Jose, CA $78 roundtrip

Sacramento to San Diego $78 roundtrip

Nashville to Atlanta $98 roundtrip

Cincinnati to Chicago-MDW $98 roundtrip

Las Vegas to San Francisco $98 roundtrip

Oakland to Long Beach $118 roundtrip

El Paso to San Diego $138 roundtrip

Portland, OR to San Diego $140 roundtrip

Tulsa to Dallas-DAL $152 roundtrip

Washington DC-DCA to Columbus $160 roundtrip

Chicago-MDW to Indianapolis $166 roundtrip

Los Angeles to Phoenix $168 roundtrip

New Orleans to San Antonio $172 roundtrip

Dallas-DAL to Kansas City $176 roundtrip

Pittsburgh to Orlando $182 roundtrip

Orlando to New Orleans $182 roundtrip

Tampa to Nashville $186 roundtrip

Baltimore to Rochester $196 roundtrip

Atlanta to Raleigh $202 roundtrip

Denver to San Francisco $202 roundtrip

Memphis to Tampa $206 roundtrip

Islip to Orlando $ 208 roundtrip

Kansas City to Las Vegas $228 roundtrip

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

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