Calculations with different methods
- 2327.381 miles
- 3745.557 kilometers
- 2022.439 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 2321.601 miles
- 3736.254 kilometers
- 2017.416 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Portland International Airport (PDX) to Washington Dulles International Airport (IAD) is 4 hours 54 minutes.
Time difference and current local times
The time difference between Portland and Washington D.C. is 3 hours. Washington D.C. is 3 hours ahead of Portland.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 273 kg (602 pounds).
Portland to Washington D.C. flight map.
Frequent Flyer Miles Calculator
Portland (PDX) → Washington D.C. (IAD).