Midwest Airlines (subsidiary of Republic Airways Holdings) (Milwaukee) will add the Milwaukee-St. Louis route on March 1, 2010. The new spoke route will be operated by sister airline Chautauqua Airlines with its Embraer ERJ 135s. With the upcoming phase out of the last Midwest Boeing 717 by the end of the year, will Republic move another type to the certificate to keep it active or surrender the Midwest Part 121 AOC?  Frontier A319s will likely be assigned to operate West Coast routes for Midwest from and to the Milwaukee hub in the near future.

Press release:

finance.yahoo.com/news/Midwest-Airlines-Announces-bw-3072266308.html?x=0&.v=1