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

Flight distance from Houston to Portsmouth (Houston William P. Hobby Airport – Portsmouth International Airport at Pease) is 1639 miles / 2637 kilometers / 1424 nautical miles. Estimated flight time is 3 hours 36 minutes.

Driving distance from Houston (HOU) to Portsmouth (PSM) is 1895 miles / 3050 kilometers and travel time by car is about 35 hours 55 minutes.

Houston – Portsmouth

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1639
Miles
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2637
Kilometers
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1424
Nautical miles

How far is Portsmouth from Houston?

There are several ways to calculate distances between Los Angeles and Chicago. 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 Houston to Portsmouth 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.

Houston time to Portsmouth time converter

Time in Houston: 00:00 ⇆ Time in Portsmouth: 00:00

Current local times

Houston, TX

 CDT

Portsmouth, NH

 EDT

Carbon dioxide emissions

On average flying from Houston to Portsmouth generates about 188 kg of CO2 per passenger, 188 kilograms is equal to 415 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Houston to Portsmouth

Shortest flight path between Houston William P. Hobby Airport (HOU) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin Houston 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
Destination 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