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

Flight 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 37 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
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
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.

CDT

EDT

## Carbon dioxide emissions

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

## Frequent Flyer Miles Calculator

Chicago (ORD) → Baltimore (BWI).

Distance:
621
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
621

Round trip?