How far is Boston from Chicago?
There are several ways to calculate distances between Chicago and Boston. Here are two common methods:Vincenty's formula (applied above)
- 866.650 miles
- 1394.737 kilometers
- 753.098 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
- 864.377 miles
- 1391.080 kilometers
- 751.123 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).
Estimated flight time from O'Hare International Airport (ORD) to Logan International Airport (BOS) is 2 hours 8 minutes.
Time difference and current local times
The time difference between Chicago and Boston is 1 hour. Boston is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 128 kg (283 pounds).
Chicago to Boston flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Boston (BOS).