Air Miles Calculator

Distance between Chicago, IL (ORD) and Baltimore, MD (BWI)

Distance from Chicago to Baltimore (Chicago O'Hare International Airport – Baltimore–Washington International Airport) is 621 miles / 1000 kilometers / 540 nautical miles. Estimated flight time is 1 hour 40 minutes.

Driving distance from Chicago (ORD) to Baltimore (BWI) is 719 miles / 1157 kilometers and travel time by car is about 12 hours 39 minutes.

Map of flight path and driving directions from Chicago to Baltimore.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Baltimore–Washington International Airport (BWI).

How far is Baltimore from Chicago?

There are several ways to calculate distances between Chicago and Baltimore. Here are two common methods:

Vincenty's formula (applied above)
  • 621.451 miles
  • 1000.129 kilometers
  • 540.026 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
  • 620.111 miles
  • 997.972 kilometers
  • 538.862 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 Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B Baltimore–Washington International Airport
City: Baltimore, MD
Country: United States Flag of United States
IATA Code: BWI
ICAO Code: KBWI
Coordinates: 39°10′31″N, 76°40′5″W

Time difference and current local times

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

Time Difference

Chicago, IL

 CDT

Baltimore, MD

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 115 kg (254 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Baltimore (BWI).

Air miles:
621
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
621

Round trip?