PRNewswire -- Summer on the prairies just became a little easier to reach with United’s announcement today of new non-stop daily service to Bismarck, N.D. and Saskatoon, Saskatchewan. Both destinations will be served from United’s hometown hub at Chicago O’Hare airport, and flights are now open for sale. These new flights complement United’s existing daily service to Bismarck and Saskatoon from its hub in Denver, and they are pending government approval.