Southwest has kicked off a 20% off fare sale for flights in and out of Philadelphia. The 20% discount is off the total amount of a one-way or roundtrip Wanna Get Away Fare purchase before taxes and fees.

Purchase must be made at or between June 28, 2011 and June 30, 2011, for travel between August 14, 2011 and October 06, 2011.

Blackout dates apply September 1 through September 6, 2011. If any portion of travel falls on a blackout date, the discount will not apply.

Discount is only valid for travel to/from Philadelphia.

7-day or more advance purchase may be required.

Discount is not valid on reservations made using Rapid Rewards points.

Changes made to the itinerary after purchase may eliminate qualifications for this promotion.

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