The observed direct connection between Washington Dulles International Airport (IAD) and Gary/Chicago International Airport (GYY) covers approximately 556 mi. The estimated flight time is around 1h 35m. Priester Aviation and Red Barn Operations have been observed on this connection in the available route data.
Frequently asked questions about this route
How far is Dulles from Gary by air?
The great-circle distance between Washington Dulles International Airport and Gary/Chicago International Airport is approximately 556 mi.
How long is the flight from Dulles to Gary?
Based on the distance, the estimated flight time is about 1h 35m. This is an estimate, not a schedule.
Is there a direct connection from Dulles to Gary?
Yes, a direct connection between IAD and GYY has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Priester Aviation and Red Barn Operations.
How often is there a flight from Dulles to Gary?
On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 109 observed flights. Mainly Red Barn Operations, Priester Aviation. That is an observation, not a timetable.
What is the current time difference between Dulles and Gary?
Gary is currently 1 hour behind Dulles.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.