Make reservations on the La Quinta website or call their reservations line at 1-800-531-5900 and use promotional code SWA50 for a 50% discount on La Quinta stays between now and March 31,2005.

The discount comes from a card sent out by Southwest Airlines with the following terms and conditions:

Offer is based upon availability and is valid on one paid stay only per customer. A stay is defined as one or more consecutive nights at the same property. Offer not valid with any other discount, promotion or with use of a free night certificate. With the discounted rate, Rapid Rewards members who are also La Quinta Returns members are able to receive 0.5 credits per qualifying stay.

Not sure how they will limit anyone to one paid stay per customer, as the discount doesn’t say you have to physically present the card at checkin to be eligible. This could be useful.