Washington→San DiegoNonstop Flight TimeIAD–NZY

Washington (Washington Dulles International Airport) to San Diego (North Island Nas (Halsey Field) Airport).

Direct flights from IAD to NZY have an estimated flight time of about 5h 14m, based on the 2,250-mile great-circle distance. Our current captured departure sample includes 2×/wk across 1 captured airline, with United Airlines appearing most often in that sample. Captured departure times run from 12:40 to 12:40 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for IAD to NZY, last seen June 15, 2026. Frequency uses 2 scheduled departures across 2 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.