Concord (USA) → Washington (IAD)
Concord-Padgett Regional Airport → Washington Dulles International Airport
Departure times are local to airport USA.
Concord (USA) — Washington (IAD): how long is the flight?
USA — IAD: scheduled duration in the saved data is 1 hr 25 min, the median of available flights.
USA — IAD: what is the distance?
The straight-line distance between airports USA and IAD is about 489 km, not the actual flight path.