How far is Portland from Chicago?
There are several ways to calculate distances between Chicago and Portland. Here are two common methods:Vincenty's formula (applied above)
- 899.871 miles
- 1448.203 kilometers
- 781.967 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
- 897.529 miles
- 1444.432 kilometers
- 779.931 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).
Estimated flight time from O'Hare International Airport (ORD) to Portland International Jetport (PWM) is 2 hours 12 minutes.
Time difference and current local times
The time difference between Chicago and Portland is 1 hour. Portland is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 144 kg (316 pounds).
Chicago to Portland flight path
Shortest flight path between O'Hare International Airport (ORD) and Portland International Jetport (PWM).
Frequent Flyer Miles Calculator
Chicago (ORD) → Portland (PWM).