How far is Portsmouth, NH, from Lahaina, HI?

The distance between Lahaina (Kapalua Airport) and Portsmouth (Portsmouth International Airport at Pease) is 5046 miles / 8121 kilometers / 4385 nautical miles.

Distance from Lahaina to Portsmouth

There are several ways to calculate the distance from Lahaina to Portsmouth. Here are two standard methods:

Vincenty's formula (applied above)

• 5046.278 miles
• 8121.197 kilometers
• 4385.096 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 5038.263 miles
• 8108.298 kilometers
• 4378.131 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).

How long does it take to fly from Lahaina to Portsmouth?

The estimated flight time from Kapalua Airport to Portsmouth International Airport at Pease is 10 hours and 3 minutes.

What is the time difference between Lahaina and Portsmouth?

The time difference between Lahaina and Portsmouth is 5 hours. Portsmouth is 5 hours ahead of Lahaina.

Flight carbon footprint between Kapalua Airport (JHM) and Portsmouth International Airport at Pease (PSM)

On average, flying from Lahaina to Portsmouth generates about 590 kg of CO2 per passenger, and 590 kilograms equals 1 300 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Lahaina to Portsmouth

See the map of the shortest flight path between Kapalua Airport (JHM) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin	Kapalua Airport
City:	Lahaina, HI
Country:	United States
IATA Code:	JHM
ICAO Code:	PHJH
Coordinates:	20°57′46″N, 156°40′22″W

Destination	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