Map of flight path and driving directions from Seattle to Petersburg.
Shortest flight path between Seattle–Tacoma International Airport (SEA) and Petersburg James A. Johnson Airport (PSG).
How far is Petersburg from Seattle?
There are several ways to calculate distances between Seattle and Petersburg. Here are two common methods:Vincenty's formula (applied above)
- 787.351 miles
- 1267.119 kilometers
- 684.189 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
- 786.180 miles
- 1265.234 kilometers
- 683.172 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 Seattle and Petersburg is 1 hour. Petersburg is 1 hour behind Seattle.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 134 kg (295 pounds).
Frequent Flyer Miles Calculator
Seattle (SEA) → Petersburg (PSG).