Dayton→WashingtonNonstop Flight TimeDAY–IAD

Dayton (James M Cox Dayton International Airport) to Washington (Washington Dulles International Airport).

Direct flights from DAY to IAD have an estimated flight time of about 1h 20m, based on the 367-mile great-circle distance. Our current captured departure sample includes 2-3/day across 1 captured airline, with United Airlines appearing most often in that sample.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for DAY to IAD, last seen June 15, 2026. Frequency uses 20 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.