Air Miles Calculator

Distance between Houston, TX (HOU) and Portsmouth, NH (PSM)

Distance from Houston to Portsmouth (William P. Hobby Airport – Portsmouth International Airport at Pease) is 1639 miles / 2637 kilometers / 1424 nautical miles.

How far is Portsmouth from Houston?

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

Vincenty's formula (applied above)
  • 1638.715 miles
  • 2637.257 kilometers
  • 1424.005 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
  • 1637.243 miles
  • 2634.887 kilometers
  • 1422.725 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).

Flight duration

Estimated flight time from William P. Hobby Airport (HOU) to Portsmouth International Airport at Pease (PSM) is 3 hours 36 minutes.

Time difference and current local times

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

Time Difference

Houston
Portsmouth

Houston, TX

 CST

Portsmouth, NH

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 180 kg (396 pounds).

Airport information


A William P. Hobby Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″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

Map

Houston to Portsmouth flight map.

Frequent Flyer Miles Calculator

Houston (HOU) → Portsmouth (PSM).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1639
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1639

Round trip?