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Washington D.C. (IAD) - Portland (PWM)
Calculations with different methods
- 493.233 miles
- 793.781 kilometers
- 428.608 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
- 492.774 miles
- 793.043 kilometers
- 428.209 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Washington Dulles International Airport (IAD) to Portland International Jetport (PWM) is 1 hour 26 minutes.
Time difference and current local times
There is no time difference between Washington D.C. and Portland.
Flight map from Washington D.C. to Portland.
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Portland (PWM).