Washington→Antigua GuatemalaNonstop Flight TimeIAD–GUA

Washington (Washington Dulles International Airport) to Antigua Guatemala (Antigua Guatemala Airport).

Direct flights from IAD to GUA have an estimated flight time of about 4h 25m, based on the 1,862-mile great-circle distance. Our current captured departure sample includes 2-3/day across 2 captured airlines, with Avianca Costa Rica appearing most often in that sample. Captured departure times run from 03:40 to 18:14 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for IAD to GUA, last seen June 15, 2026. Frequency uses 17 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.