Map of flight path and driving directions from Charleston to Portsmouth.
Shortest flight path between Charleston International Airport (CHS) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Charleston?
There are several ways to calculate distances between Charleston and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 862.518 miles
- 1388.088 kilometers
- 749.508 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
- 862.847 miles
- 1388.617 kilometers
- 749.793 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
There is no time difference between Charleston and Portsmouth.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 140 kg (310 pounds).
Frequent Flyer Miles Calculator
Charleston (CHS) → Portsmouth (PSM).