Map of flight path and driving directions from Chicago to Philadelphia.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Philadelphia International Airport (PHL).
How far is Philadelphia from Chicago?
There are several ways to calculate distances between Chicago and Philadelphia. Here are two common methods:Vincenty's formula (applied above)
- 677.865 miles
- 1090.918 kilometers
- 589.048 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
- 676.254 miles
- 1088.325 kilometers
- 587.649 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 Philadelphia is 1 hour. Philadelphia is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 122 kg (269 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Philadelphia (PHL).