Southwest sale offers round-trip fares under $100

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Tuesday, October 13, 2015
Southwest Airlines
FILE PHOTO: A Southwest Airlines jet takes off from Washington's Ronald Reagan National Airport, Thursday, Sept. 25, 2014. (AP Photo/J. Scott Applewhite)

CHICAGO (WLS) -- Southwest Airline is offering round trip flights for under 100 dollars, but you have to act quickly.

The sale covers domestic travel in early December, as well as in January and early February.

The fares are available only on certain days of the week. Southwest's fare sale runs now through the end of the day on Thursday.