How far is Seattle, WA, from Washington D.C.?
The distance between Washington D.C. (Ronald Reagan Washington National Airport) and Seattle (Seattle–Tacoma International Airport) is 2328 miles / 3747 kilometers / 2023 nautical miles.
The driving distance from Washington D.C. (DCA) to Seattle (SEA) is 2751 miles / 4427 kilometers, and travel time by car is about 49 hours 30 minutes.
Ronald Reagan Washington National Airport – Seattle–Tacoma International Airport
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Distance from Washington D.C. to Seattle
There are several ways to calculate the distance from Washington D.C. to Seattle. Here are two standard methods:
Vincenty's formula (applied above)- 2328.467 miles
- 3747.304 kilometers
- 2023.382 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- 2322.777 miles
- 3738.148 kilometers
- 2018.438 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?
The estimated flight time from Ronald Reagan Washington National Airport to Seattle–Tacoma International Airport is 4 hours and 54 minutes.
What is the time difference between Washington D.C. and Seattle?
Flight carbon footprint between Ronald Reagan Washington National Airport (DCA) and Seattle–Tacoma International Airport (SEA)
On average, flying from Washington D.C. to Seattle generates about 255 kg of CO2 per passenger, and 255 kilograms equals 563 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
See the map of the shortest flight path between Ronald Reagan Washington National Airport (DCA) and Seattle–Tacoma International Airport (SEA).
Airport information
| Origin | Ronald Reagan Washington National Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States  |
| IATA Code: | DCA |
| ICAO Code: | KDCA |
| Coordinates: | 38°51′7″N, 77°2′15″W |
| Destination | Seattle–Tacoma International Airport |
|---|---|
| City: | Seattle, WA |
| Country: | United States |
| IATA Code: | SEA |
| ICAO Code: | KSEA |
| Coordinates: | 47°26′56″N, 122°18′32″W |
Airlines flying from Washington D.C. (DCA) to Seattle (SEA)
| Alaska Airlines |