Distance between Boston, MA (BOS) and Chicago, IL (ORD)
Distance from Boston to Chicago (Logan International Airport – O'Hare International Airport) is 867 miles / 1395 kilometers / 753 nautical miles.
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Boston - Chicago
How far is Chicago from Boston?
There are several ways to calculate distances between Boston and Chicago. 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).
Flight duration
Estimated flight time from Logan International Airport (BOS) to O'Hare International Airport (ORD) is 2 hours 8 minutes.
Time difference and current local times
The time difference between Boston and Chicago is 1 hour. Chicago is 1 hour behind Boston.
Time Difference
Boston, MA
Chicago, IL
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 141 kg (310 pounds).
Airport information
| A | Logan International Airport |
|---|---|
| City: | Boston, MA |
| Country: | United States  |
| IATA Code: | BOS |
| ICAO Code: | KBOS |
| Coordinates: | 42°21′51″N, 71°0′18″W |
| B | 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 |
Boston to Chicago flight path
Shortest flight path between Logan International Airport (BOS) and O'Hare International Airport (ORD).
Frequent Flyer Miles Calculator
Boston (BOS) → Chicago (ORD).
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