First Interstate Bank in Airway Heights, WA offers a comprehensive suite of personal and business products to take care of your diverse financial needs. Whether youre a first-time home buyer looking for a mortgage, an established business looking to streamline your payment methods, or someone who is ready to plan your financial future, our local banking experts at First Interstate Bank Airway Heights Branch will help you reach your goals. First Interstate Bank is a community banking organization headquartered in Billings, Montana.