DES MOINES, Iowa (AP) – Iowa says that tickets for its season opener against Northern Illinois at Chicago’s Soldier Field are now available to the general public. The Hawkeyes say tickets range from $60-80 for the neutral site game, which will be held on Sept. 1.  Iowa says nearly 15,000 of its season-ticket holders have already purchased tickets.  The Hawkeyes finished 7-6 a year ago, while Northern Illinois won its last nine games. But Iowa is 7-0 against the Huskies, including a 16-3 win at Soldier Field in 2007.