Air Miles Calculator

Distance between Boston, MA (BOS) and Chicago, IL (ORD)

Distance from Logan International Airport to O'Hare International Airport is 867 miles / 1395 kilometers / 753 nautical miles.

Calculations with different 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).

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
Chicago

Boston, MA

 EST

Chicago, IL

 CST

Airport information


A Logan International Airport
City: Boston, MA
Country: United States Flag of 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 Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

Map

Flight map from Boston to Chicago.

Frequent Flyer Miles Calculator

Boston (BOS) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
867
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
867

Round trip?