How far is Porto from Houston, TX?

The distance between Houston (Houston George Bush Intercontinental Airport) and Porto (Porto Airport) is 4739 miles / 7626 kilometers / 4118 nautical miles.

Distance from Houston to Porto

There are several ways to calculate the distance from Houston to Porto. Here are two standard methods:

Vincenty's formula (applied above)

• 4738.843 miles
• 7626.428 kilometers
• 4117.942 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

• 4728.877 miles
• 7610.390 kilometers
• 4109.282 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 Houston to Porto?

The estimated flight time from Houston George Bush Intercontinental Airport to Porto Airport is 9 hours and 28 minutes.

What is the time difference between Houston and Porto?

The time difference between Houston and Porto is 6 hours. Porto is 6 hours ahead of Houston.

Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and Porto Airport (OPO)

On average, flying from Houston to Porto generates about 550 kg of CO2 per passenger, and 550 kilograms equals 1 213 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Houston to Porto

See the map of the shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Porto Airport (OPO).

Airport information

Origin	Houston George Bush Intercontinental Airport
City:	Houston, TX
Country:	United States
IATA Code:	IAH
ICAO Code:	KIAH
Coordinates:	29°59′3″N, 95°20′29″W

Destination	Porto Airport
City:	Porto
Country:	Portugal
IATA Code:	OPO
ICAO Code:	LPPR
Coordinates:	41°14′53″N, 8°40′53″W