Change fees are one thing that will keep us firmly in the Southwest camp. We haven't even had 6 months of service from WN here (started at MSP March 8) & I've already saved almost $1,800 from not having change fees:

* Just under $900 in refare savings

* Major changes in plans for 3 trips x 2 people. In fact, the ONLY business we've given DL/NW since March 8 have been trips to ATL that were changed w/o penalty from trips to elsewhere on WN. If DL/NW were our airline of choice we'd have been stuck or fleeced