How far is Chicago, IL, from Perth?

The distance between Perth (Perth Airport) and Chicago (Chicago O'Hare International Airport) is 10956 miles / 17632 kilometers / 9520 nautical miles.

Distance from Perth to Chicago

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

Vincenty's formula (applied above)

• 10955.788 miles
• 17631.632 kilometers
• 9520.320 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

• 10954.628 miles
• 17629.765 kilometers
• 9519.312 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 Perth to Chicago?

The estimated flight time from Perth Airport to Chicago O'Hare International Airport is 21 hours and 14 minutes.

What is the time difference between Perth and Chicago?

The time difference between Perth and Chicago is 14 hours. Chicago is 14 hours behind Perth.

Flight carbon footprint between Perth Airport (PER) and Chicago O'Hare International Airport (ORD)

On average, flying from Perth to Chicago generates about 1 454 kg of CO2 per passenger, and 1 454 kilograms equals 3 206 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Perth to Chicago

See the map of the shortest flight path between Perth Airport (PER) and Chicago O'Hare International Airport (ORD).

Airport information

Origin	Perth Airport
City:	Perth
Country:	Australia
IATA Code:	PER
ICAO Code:	YPPH
Coordinates:	31°56′25″S, 115°58′1″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