Southwest rolled out another 72-hour airfare sale Tuesday mornin - KTIV News 4 Sioux City IA: News, Weather and Sports

Southwest rolled out another 72-hour airfare sale Tuesday morning

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(NBC News) -

Southwest Airlines has rolled out another of its popular 72-hour airfare sales on dozens of its routes.

Flights begin at $49 each way on Southwest's shortest routes.

For longer routes, they increase to $79, $99 or $129 each way.

The sale covers travel from October 31 through December 19 with some exclusions.

The sale launched Tuesday morning and will end Thursday night.

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