<P> Midwest Airlines ( formerly Midwest Express ) was a U.S. - based airline and , for a short time , an operating brand of Republic Airways Holdings based in Oak Creek , Wisconsin , operating from Milwaukee 's General Mitchell International Airport . On April 13 , 2010 , parent company Republic announced that Midwest Airlines and Frontier Airlines would merge , with the Midwest brand disappearing in late 2011 . </P>
<P> Midwest Airlines ( formerly Midwest Express ) was a U.S. - based airline and , for a short time , an operating brand of Republic Airways Holdings based in Oak Creek , Wisconsin , operating from Milwaukee 's General Mitchell International Airport . On April 13 , 2010 , parent company Republic announced that Midwest Airlines and Frontier Airlines would merge , with the Midwest brand disappearing in late 2011 . </P>
when did midwest express go out of business
when did midwest express go out of business
in late 2011
in late 2011