Map of flight path and driving directions from Chicago to Portland.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Portland International Airport (PDX).
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)
- 1739.259 miles
- 2799.066 kilometers
- 1511.375 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
- 1734.657 miles
- 2791.659 kilometers
- 1507.376 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).
Time difference and current local times
The time difference between Chicago and Portland is 2 hours. Portland is 2 hours behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 195 kg (431 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Portland (PDX).