Map of flight path and driving directions from Charleston to Seattle.
Shortest flight path between Charleston International Airport (CHS) and Seattle–Tacoma International Airport (SEA).
How far is Seattle from Charleston?
There are several ways to calculate distances between Charleston and Seattle. Here are two common methods:Vincenty's formula (applied above)
- 2414.732 miles
- 3886.135 kilometers
- 2098.345 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
- 2410.336 miles
- 3879.060 kilometers
- 2094.525 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).
Time difference and current local times
The time difference between Charleston and Seattle is 3 hours. Seattle is 3 hours behind Charleston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 265 kg (585 pounds).
Frequent Flyer Miles Calculator
Charleston (CHS) → Seattle (SEA).