The flight distance from Castle Airport (MER) in Atwater, United States to Chicago O'Hare International Airport (ORD) in Chicago, United States is 2,825 kilometers (1,756 miles / 1,526 nautical miles). The estimated flight time for this route is approximately 4h, flying east northeast at a heading of 69°.

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 2-hour time difference between the two cities.

Time zone information: When it's 06:46 in Atwater, it's 08:46 in Chicago.

The return flight from Chicago (ORD) to Atwater (MER) follows a heading of 271° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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