Jakob,
UND does have whats called the WUE (western undergratuate exchange) that allows you to attend the college a reduced rate from what a typical out of state student would pay. It is not as cheap as the in-state but it is fairly priced. I believe it is currently around 5000. www.aero.und.edu will give you an estimate of the cost for each flight course. Your major will determine which flight courses you are required to take. The site is kind of difficult to navigate but not too bad.