How far is Chicago, IL, from Bologna?

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

Distance from Bologna to Chicago

There are several ways to calculate the distance from Bologna to Chicago. 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 Bologna to Chicago?

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

What is the time difference between Bologna and Chicago?

The time difference between Bologna and Chicago is 7 hours. Chicago is 7 hours behind Bologna.

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

On average, flying from Bologna to Chicago 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 Bologna to Chicago

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

Airport information

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

Destination	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