# 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
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
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.

CDT

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?