FLIGHT TIME / CALCULATED ESTIMATE
Preah Sihanouk ↗ Dulles
KOS / Sihanouk International AirportIAD / Washington Dulles International Airport
MODELLED FLYING TIME18h 3mIllustrative estimate, not a scheduled flight
GREAT-CIRCLE DISTANCE14,508 kmGeographic straight-line distance
ROUTE CATEGORYInternationalOrigin and destination country records
How long is the flight?
The calculated airborne flight-time estimate between Preah Sihanouk (KOS) and Dulles (IAD) is approximately 18 hours and 3 minutes for a modelled route length of 14,508 km.
This is not a confirmed nonstop service or published airline schedule. Airlines can use different paths, and connection time, taxiing, winds, weather, airspace restrictions and operational delays can change the actual journey.
Reference coordinates
Departure: Sihanouk International Airport. Arrival: Washington Dulles International Airport. Both airport-code and coordinate records are drawn from the site’s imported aviation dataset, with initial curated data used until refreshed.