SIOUX CITY, Iowa (AP) – Frontier Airlines says it will resume flights into the Sioux City airport beginning this summer. The Sioux City Journal reports Frontier in June will begin flights three days a week between Sioux City and Denver.

Denver-based Frontier will return to Sioux City six years after it pulled out of the market. Frontier will become the second carrier at Sioux Gateway Airport, joining American Airlines. The new flights will use 138-seat Airbus 319 jets.