BISMARCK, N.D. (AP) — United Airlines is adding direct flights between Bismarck and Chicago's O'Hare International Airport.

The two daily flights on 50-seat jets will begin June 7. They'll complement United's existing service between Bismarck and Denver.

United's expanded offering in Bismarck is part of a larger service expansion announced by the airline.

American Airlines has offered flights between Bismarck and O'Hare since October 2014.