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Distance between Washington D.C. (IAD) and Seattle, WA (BFI)

Flight distance from Washington D.C. to Seattle (Washington Dulles International Airport – Seattle Boeing Field) is 2305 miles / 3710 kilometers / 2003 nautical miles. Estimated flight time is 4 hours 51 minutes.

Driving distance from Washington D.C. (IAD) to Seattle (BFI) is 2740 miles / 4410 kilometers and travel time by car is about 49 hours 19 minutes.

Washington D.C. – Seattle

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2305
Miles
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3710
Kilometers
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2003
Nautical miles

How far is Seattle from Washington D.C.?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 2305.212 miles
  • 3709.878 kilometers
  • 2003.174 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
  • 2299.575 miles
  • 3700.808 kilometers
  • 1998.276 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 Washington D.C. to Seattle?

Estimated flight time from Washington Dulles International Airport to Seattle Boeing Field is 4 hours 51 minutes.

What is the time difference between Washington D.C. and Seattle?

The time difference between Washington D.C. and Seattle is 3 hours. Seattle is 3 hours behind Washington D.C..
Washington D.C. time to Seattle time converter

Flight carbon footprint between Washington Dulles International Airport (IAD) and Seattle Boeing Field (BFI)

On average flying from Washington D.C. to Seattle generates about 253 kg of CO2 per passenger, 253 kilograms is equal to 557 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Washington D.C. to Seattle

Shortest flight path between Washington Dulles International Airport (IAD) and Seattle Boeing Field (BFI).

Airport information

Origin Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W
Destination Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W