# Distance between Chicago, IL (ORD) and Buffalo, NY (BUF)

Flight distance from Chicago to Buffalo (Chicago O'Hare International Airport – Buffalo Niagara International Airport) is 473 miles / 762 kilometers / 411 nautical miles. Estimated flight time is 1 hour 23 minutes.

Driving distance from Chicago (ORD) to Buffalo (BUF) is 556 miles / 895 kilometers and travel time by car is about 9 hours 59 minutes.

## 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).

## Airport information

A Chicago O'Hare International Airport
City: Chicago, IL
Country: United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B Buffalo Niagara International Airport
City: Buffalo, NY
Country: United States
IATA Code: BUF
ICAO Code: KBUF
Coordinates: 42°56′25″N, 78°43′55″W

## Time difference and current local times

The time difference between Chicago and Buffalo is 1 hour. Buffalo is 1 hour ahead of Chicago.

CDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 95 kg (209 pounds).

## Frequent Flyer Miles Calculator

Chicago (ORD) → Buffalo (BUF).

Distance:
473
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
473

Round trip?