Cindy and I have always taken a direct flight out of St. Louis to MBJ via Frontier Airlines charter in February, however the cost has gone from $450.00 each to almost $750.00. I see that Southwest has a direct out of Chicago Midway for much less. St. Louis is much more convenient for us but the costs are killing us. Any opinions on Southwest or anyone that has flown out of Chicago Midway. Thanks for the help.