Pros: Rapid Reward program, no frivolous fees, bag check, website\n\nCons: DELAYS\n\nAccording to the Bureau of Transportation Statistics, Southwest on-time performance departure statistics have gone from 80% on time in 2009, to 68% on time in 2014.  Translation, more than 30% of SW flights are delayed, with the average delay lasting at least 45 minutes. (transtats.bts.gov)\n\nSW has been a good airline, but most of my flights in the past few months have been delayed.  I'm obviously not the only one.