Calculations with different methods
- 1824.593 miles
- 2936.398 kilometers
- 1585.528 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
- 1822.934 miles
- 2933.728 kilometers
- 1584.087 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from George Bush Intercontinental Airport (IAH) to Portland International Airport (PDX) is 3 hours 57 minutes.
Time difference and current local times
The time difference between Houston and Portland is 2 hours. Portland is 2 hours behind Houston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 212 kg (467 pounds).
Houston to Portland flight map.
Frequent Flyer Miles Calculator
Houston (IAH) → Portland (PDX).