How far is Bologna from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Bologna (Bologna Guglielmo Marconi Airport) is 4669 miles / 7513 kilometers / 4057 nautical miles.

Distance from Chicago to Bologna

There are several ways to calculate the distance from Chicago to Bologna. Here are two standard methods:

Vincenty's formula (applied above)

• 4668.656 miles
• 7513.473 kilometers
• 4056.951 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 4656.287 miles
• 7493.567 kilometers
• 4046.203 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).

How long does it take to fly from Chicago to Bologna?

The estimated flight time from Chicago O'Hare International Airport to Bologna Guglielmo Marconi Airport is 9 hours and 20 minutes.

What is the time difference between Chicago and Bologna?

The time difference between Chicago and Bologna is 7 hours. Bologna is 7 hours ahead of Chicago.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Bologna Guglielmo Marconi Airport (BLQ)

On average, flying from Chicago to Bologna generates about 541 kg of CO2 per passenger, and 541 kilograms equals 1 193 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to Bologna

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Bologna Guglielmo Marconi Airport (BLQ).

Airport information

Origin	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

Destination	Bologna Guglielmo Marconi Airport
City:	Bologna
Country:	Italy
IATA Code:	BLQ
ICAO Code:	LIPE
Coordinates:	44°32′7″N, 11°17′19″E