Financial terms were not released.
The 24-year-old forward had NHL career highs in points (25), goals (seven) and assists (18) in 50 games with the Blackhawks last season. He could have become a restricted free agent July 1.
He had 22 points (nine goals, 13 assists) in 23 games with Rockford of the American Hockey League and was named an AHL All-Star.
Selected by Chicago in the sixth round (No. 169) of the 2012 NHL Draft, Hinostroza has 39 points (13 goals, 26 assists) in 106 regular-season games with Chicago, and no points in one Stanley Cup Playoff game.
The Blackhawks also agreed to terms with forward John Hayden on a two-year contract. The 23-year-old, taken by Chicago in the third round (No. 74) of the 2013 NHL Draft, had 13 points (four goals, nine assists) in 47 games with the Blackhawks this season. He could have become a restricted free agent July 1.