How far is Washington D.C. from Portland, ME?
The distance between Portland (Portland International Jetport) and Washington D.C. (Washington Dulles International Airport) is 493 miles / 794 kilometers / 429 nautical miles.
The driving distance from Portland (PWM) to Washington D.C. (IAD) is 557 miles / 896 kilometers, and travel time by car is about 11 hours 17 minutes.
Portland International Jetport – Washington Dulles International Airport
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Distance from Portland to Washington D.C.
There are several ways to calculate the distance from Portland to Washington D.C.. Here are two standard methods:
Vincenty's formula (applied above)- 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 planet.
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 – the shortest distance between two points).
How long does it take to fly from Portland to Washington D.C.?
The estimated flight time from Portland International Jetport to Washington Dulles International Airport is 1 hour and 26 minutes.
What is the time difference between Portland and Washington D.C.?
There is no time difference between Portland and Washington D.C..
Flight carbon footprint between Portland International Jetport (PWM) and Washington Dulles International Airport (IAD)
On average, flying from Portland to Washington D.C. generates about 98 kg of CO2 per passenger, and 98 kilograms equals 215 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Portland to Washington D.C.
See the map of the shortest flight path between Portland International Jetport (PWM) and Washington Dulles International Airport (IAD).
Airport information
| Origin | Portland International Jetport |
|---|---|
| City: | Portland, ME |
| Country: | United States  |
| IATA Code: | PWM |
| ICAO Code: | KPWM |
| Coordinates: | 43°38′46″N, 70°18′33″W |
| Destination | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |