Map of flight path and driving directions from Detroit to Portsmouth.
Shortest flight path between Detroit Metropolitan Airport (DTW) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Detroit?
There are several ways to calculate distances between Detroit and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 640.691 miles
- 1031.092 kilometers
- 556.745 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
- 639.011 miles
- 1028.389 kilometers
- 555.286 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 Detroit and Portsmouth.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 118 kg (260 pounds).
Frequent Flyer Miles Calculator
Detroit (DTW) → Portsmouth (PSM).