# Distance between Houston, TX (IAH) and Portland, ME (PWM)

Flight distance from Houston to Portland (Houston George Bush Intercontinental Airport – Portland International Jetport) is 1667 miles / 2682 kilometers / 1448 nautical miles. Estimated flight time is 3 hours 39 minutes.

Driving distance from Houston (IAH) to Portland (PWM) is 1948 miles / 3135 kilometers and travel time by car is about 34 hours 32 minutes.

## Map of flight path and driving directions from Houston to Portland.

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Portland International Jetport (PWM).

## How far is Portland from Houston?

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

Vincenty's formula (applied above)
• 1666.709 miles
• 2682.308 kilometers
• 1448.330 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
• 1665.143 miles
• 2679.788 kilometers
• 1446.970 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 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

B Portland International Jetport
City: Portland, ME
Country: United States
IATA Code: PWM
ICAO Code: KPWM
Coordinates: 43°38′46″N, 70°18′33″W

## Time difference and current local times

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

CST

EST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 190 kg (420 pounds).

## Frequent Flyer Miles Calculator

Houston (IAH) → Portland (PWM).

Distance:
1667
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1667

Round trip?