The flight distance from Great Falls International Airport (GTF) in Great Falls, United States to Chicago O'Hare International Airport (ORD) in Chicago, United States is 1,943 kilometers (1,207 miles / 1,049 nautical miles). The estimated flight time for this route is approximately 3h, flying east at a heading of 100°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 1-hour time difference between the two cities.

Time zone information: When it's 02:35 in Great Falls, it's 03:35 in Chicago.

There is a significant elevation difference of 3,000 feet between the two airports. Chicago O'Hare International Airport sits lower than Great Falls International Airport.

The return flight from Chicago (ORD) to Great Falls (GTF) follows a heading of 296° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Great Falls International Airport (GTF) and Chicago O'Hare International Airport (ORD) detail pages, or use our flight duration calculator to compare other routes.