Our trip to San Francisco with a plane change in Dallas/Fort Worth went without a hitch. Everything was perfect and on time. However our return flight home 7days later was a nightmare. The day before we were to leave we began receiving emails from the airline informing us that our flight home had been cancelled. To make a very frustrating, long story short, We were put on no less than 6 different flights that were all cancelled to return on the day we were supposed to. We ended up having to fly home through Charlotte, NC which added 2 more hours flying time.