All deals in this post have expired.

Southwest is having a three-day deal giving triple points on purchases at five retailers. The deal expires 3/31/2012.To access the deal, simply go to rapidrewardsshopping.southwest.com. The deal is open to all without any special codes, just search for the applicable retailer, and click the Shop Now button.

What’s the deal worth? I’ll be basing this on my analysis of the value of a Southwest Rapid Rewards point. Since it’s a fixed-value program, your value should be the same. The points listed below are in addition to any you earn for a normal purchase, so if you’re using the Southwest credit card, add another one point per dollar to every deal.

  1. ebags.com: 6 18 points per dollar. Purchasing through the Southwest portal earns a 30.4% rebate. If you’re planning on buying some luggage, this could be an incredible deal. Normal best deal: 9 Ultimate Rewards points per dollar through Chase’s online portal.
  2. Tory Burch: 3 9 points per dollar. Purchasing through the Southwest portal earns a 15.2% rebate. I’ve never heard of this brand, but a 15% rebate on “an attainable, luxury, lifestyle brand defined by classic American sportswear with an eclectic sensibility” must be a good deal for someone. Normal best deal: 3 Membership Rewards points per dollar through Amex’s online portal.
  3. Target: 2 6 points per dollar. Purchasing through the Southwest portal earns a 10.1% rebate. This is a great deal at an already inexpensive, low-margin retailer. Normal best deal: 3 Membership Rewards points per dollar through Amex’s online portal.
  4. Macy’s: 2 6 points per dollar. Purchasing through the Southwest portal earns a 10.1% rebate. If you had something in mind at Macy’s, enjoy this 10% rebate.  Normal best deal: 5 Ultimate Rewards points per dollar through Chase’s online portal.
  5. Barnes & Noble: 1 3 points per dollar. Purchasing through the Southwest portal earns a 5.1% rebate. This is a bad deal. Chase’s online portal lets you earn 10 Ultimate Rewards per dollar on B&N purchases every day. And Ultimate Rewards can be transferred to Southwest at a 1:1 ratio among other transfer opportunities. If you want to shop at B&N, do it through Chase.

Things to keep in mind: you don’t get the bonus points on gift card purchases or shipping. And most importantly, this is really only a good deal if you were planning to purchase what you purchased anyway. If you were willing to pay the full retail price, a 30.4% rebate is pretty sweet. But if this deal gets you to buy things you wouldn’t have otherwise bought, you may actually come out behind.