Map of flight path and driving directions from Chicago to Buffalo.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Buffalo Niagara International Airport (BUF).
How far is Buffalo from Chicago?
There are several ways to calculate distances between Chicago and Buffalo. Here are two common methods:Vincenty's formula (applied above)
- 473.235 miles
- 761.598 kilometers
- 411.230 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
- 472.019 miles
- 759.641 kilometers
- 410.173 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 Buffalo is 1 hour. Buffalo is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 95 kg (209 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Buffalo (BUF).