Air Miles Calculator

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

Flight distance from Seattle to Washington D.C. (Seattle Boeing Field – Ronald Reagan Washington National Airport) is 2328 miles / 3746 kilometers / 2023 nautical miles. Estimated flight time is 4 hours 54 minutes.

Driving distance from Seattle (BFI) to Washington D.C. (DCA) is 2801 miles / 4508 kilometers and travel time by car is about 46 hours 25 minutes.

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

Shortest flight path between Seattle Boeing Field (BFI) and Ronald Reagan Washington National Airport (DCA).

How far is Washington D.C. from Seattle?

There are several ways to calculate distances between Seattle and Washington D.C.. Here are two common methods:

Vincenty's formula (applied above)
  • 2327.934 miles
  • 3746.446 kilometers
  • 2022.919 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
  • 2322.250 miles
  • 3737.299 kilometers
  • 2017.980 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).

Airport information


A 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

B Ronald Reagan Washington National Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: DCA
ICAO Code: KDCA
Coordinates: 38°51′7″N, 77°2′15″W

Time difference and current local times

The time difference between Seattle and Washington D.C. is 3 hours. Washington D.C. is 3 hours ahead of Seattle.

Time Difference

Seattle, WA

 PST

Washington D.C.

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 255 kg (563 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Washington D.C. (DCA).

Distance:
2328
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2328

Round trip?