It is a common statement here on FT that Southwest "explicitly allows" Hidden City bookings. In fact, the Wiki even claims:
In case you were worried about getting caught breaking the rules, read this. The Customer Service Commitment document posted at southwest.com states "SWA does not prohibit or penalize what is commonly known as 'hidden city' ticketing, nor does it prohibit or penalize what is commonly known as 'back to back' ticketing. 'Hidden city' and 'back to back' reservations and tickets are authorized for travel on SWA." The two-step and similar variants are perfectly OK to 'fess up to on Southwest.
The problem is, the CSC does not, in fact, say that. In fact, the word "hidden" does not appear in either the CSC:
http://www.southwest.com/assets/pdfs...commitment.pdf
nor the Contract of Carriage:
http://www.southwest.com/assets/pdfs...f-carriage.pdf
Can anyone find a reference in either of these two documents to the practice of Hidden City booking that doesn't actually refer to it as Hidden City booking? If not, I think it's time to stop claiming that it's explicitly allowed, and prepare for the moment when they decide to start making it disallowed.