The flight distance from Gerald R. Ford International Airport to Washington Dulles International Airport is:

502 miles / 808 km

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Flight path from GRR to IAD

Open this map directly on Google Maps.

Distance from GRR to IAD

The total distance from GRR to IAD is 502 miles.

This is equivalent to 808 kilometers or 436 nautical miles.

Your trip begins at Gerald R. Ford International Airport in Grand Rapids, Michigan.
It ends at Washington Dulles International Airport in Dulles, Virginia.

Your flight direction from GRR to IAD is Southeast (120 degrees from North).

The distance calculator helps you figure out how far it is to fly from GRR to IAD. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.