Air Miles Calculator

Distance between Lafayette, LA (LFT) and Portsmouth, NH (PSM)

Flight distance from Lafayette to Portsmouth (Lafayette Regional Airport – Portsmouth International Airport at Pease) is 1466 miles / 2360 kilometers / 1274 nautical miles. Estimated flight time is 3 hours 16 minutes.

Driving distance from Lafayette (LFT) to Portsmouth (PSM) is 1681 miles / 2706 kilometers and travel time by car is about 30 hours 6 minutes.

Map of flight path and driving directions from Lafayette to Portsmouth.

Shortest flight path between Lafayette Regional Airport (LFT) and Portsmouth International Airport at Pease (PSM).

How far is Portsmouth from Lafayette?

There are several ways to calculate distances between Lafayette and Portsmouth. Here are two common methods:

Vincenty's formula (applied above)
  • 1466.218 miles
  • 2359.649 kilometers
  • 1274.109 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
  • 1465.161 miles
  • 2357.948 kilometers
  • 1273.190 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 Lafayette Regional Airport
City: Lafayette, LA
Country: United States Flag of United States
IATA Code: LFT
ICAO Code: KLFT
Coordinates: 30°12′19″N, 91°59′15″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 Lafayette and Portsmouth is 1 hour. Portsmouth is 1 hour ahead of Lafayette.

Time Difference

Lafayette, LA

 CDT

Portsmouth, NH

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 177 kg (391 pounds).

Frequent Flyer Miles Calculator

Lafayette (LFT) → Portsmouth (PSM).

Distance:
1466
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1466

Round trip?