The flight distance from Allen Army Air Field (BIG) in Delta Junction Ft Greely, United States to Chicago O'Hare International Airport (ORD) in Chicago, United States is 4,360 kilometers (2,709 miles / 2,354 nautical miles). The estimated flight time for this route is approximately 6h, flying east at a heading of 96°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

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 3-hour time difference between the two cities.

Time zone information: When it's 20:45 in Delta Junction Ft Greely, it's 23:45 in Chicago. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Chicago (ORD) to Delta Junction Ft Greely (BIG) follows a heading of 324° (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 Allen Army Air Field (BIG) and Chicago O'Hare International Airport (ORD) detail pages, or use our flight duration calculator to compare other routes.