Great Falls to Indiana Dunes: Road Trip Guide & Distance

How far is Great Falls from Indiana Dunes?

The distance from Great Falls to Indiana Dunes is 1253.8 miles (2017.8 km) as the crow flies. Indiana Dunes is located E of Great Falls. By car, the driving distance is approximately 1504.6 miles, taking about 30h 16min. A direct flight would take roughly 3h 1min. Both are located in United States — Great Falls in Montana and Indiana Dunes in Indiana.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Great Falls and Indiana Dunes. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.