How far is Seattle from Philadelphia?
There are several ways to calculate distances between Philadelphia and Seattle. Here are two common methods:Vincenty's formula (applied above)
- 2378.215 miles
- 3827.365 kilometers
- 2066.612 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
- 2372.183 miles
- 3817.659 kilometers
- 2061.371 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).
Estimated flight time from Philadelphia International Airport (PHL) to Seattle–Tacoma International Airport (SEA) is 5 hours 0 minutes.
Time difference and current local times
The time difference between Philadelphia and Seattle is 3 hours. Seattle is 3 hours behind Philadelphia.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 265 kg (585 pounds).
Philadelphia to Seattle flight map.
Frequent Flyer Miles Calculator
Philadelphia (PHL) → Seattle (SEA).