Southwest Airlines planes take off from the airline’s hub at Dallas Love Field on March 12, 2008 in Dallas, Texas. (credit: Rick Gershon/Getty Images)

DALLAS (AP) — Southwest Airlines Co. has announced discounts of up to 40 percent on some fares through mid-February.

Dallas-based Southwest on Tuesday kicked off the 72-hour air fare sale meant to attract travelers during non-holiday periods.

Southwest says the discounted fares exclude Sunday travel. The fares are available for certain flights from Nov. 28 through Dec. 12 and from Jan. 7 through Feb. 14, with blackout dates for select markets.

The discount code BigDeal40 is required to attain the sale fares. Other restrictions may apply.

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