I booked our flights with Southwest. Don"t know a lot about them. Only flown with them 1 time & it was nonstop. On our return trip (from Las Vegas of course!) we are supposed to land @ 11:00 AM change planes & leave Denver @ 11:30AM. I am concerned that if there are any problems we will be in trouble. Looks like thats the only flight of the day to Dayton. Since Southwest does not have an agreement with other airlines is there a chance we will be stuck in Denver overnite?