Along those lines I recently ran into a co-worker at the airport. He and his wife had bought tickets to Paris for $400. The deal, however, was only for a flight originating in Denver with a stopover in SLC. Since they live in Salt Lake he asked the airline if they could just catch the flight in SLC. He was informed that the deal was only for the flight from Denver. So, he bout a cheap ($39) one-way ticket to Denver on another carrier and then got on a plane back to SLC. On the return trip from Paris they just won't show up to get back on the plane after the layover.