Map of flight path and driving directions from Dallas to Portsmouth.
Shortest flight path between Dallas Love Field (DAL) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Dallas?
There are several ways to calculate distances between Dallas and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 1577.780 miles
- 2539.190 kilometers
- 1371.053 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
- 1575.344 miles
- 2535.270 kilometers
- 1368.936 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 Dallas and Portsmouth is 1 hour. Portsmouth is 1 hour ahead of Dallas.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 184 kg (407 pounds).
Frequent Flyer Miles Calculator
Dallas (DAL) → Portsmouth (PSM).