Map of flight path and driving directions from Chicago to Quincy.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Quincy Regional Airport (UIN).
How far is Quincy from Chicago?
There are several ways to calculate distances between Chicago and Quincy. Here are two common methods:Vincenty's formula (applied above)
- 222.122 miles
- 357.471 kilometers
- 193.019 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
- 221.896 miles
- 357.106 kilometers
- 192.822 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
There is no time difference between Chicago and Quincy.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 56 kg (123 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Quincy (UIN).