Air Miles Calculator

Distance between Dallas, TX (DAL) and Portsmouth, NH (PSM)

Flight distance from Dallas to Portsmouth (Dallas Love Field – Portsmouth International Airport at Pease) is 1578 miles / 2539 kilometers / 1371 nautical miles. Estimated flight time is 3 hours 29 minutes.

Driving distance from Dallas (DAL) to Portsmouth (PSM) is 1813 miles / 2918 kilometers and travel time by car is about 32 hours 9 minutes.

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).

Airport information


A Dallas Love Field
City: Dallas, TX
Country: United States Flag of United States
IATA Code: DAL
ICAO Code: KDAL
Coordinates: 32°50′49″N, 96°51′6″W

B Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W

Time difference and current local times

The time difference between Dallas and Portsmouth is 1 hour. Portsmouth is 1 hour ahead of Dallas.

Time Difference

Dallas, TX

 CST

Portsmouth, NH

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 184 kg (407 pounds).

Frequent Flyer Miles Calculator

Dallas (DAL) → Portsmouth (PSM).

Distance:
1578
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1578

Round trip?