Grand Rapids has an international airport, though flight prices can occasionally be higher. There are two other international airports nearby: Detroit, about a 2-hour drive to Grand Rapids, and Chicago, which is about 3 hours away by car or accessible via train or bus. Please check schedules here: https://www.amtrak.com/midwest/grand-rapids?msockid=27f7d4dec48e64091ba7c73ac59d652e https://www.flixbus.com/bus-routes/bus-chicago-il-grand-rapids-mi