How far is Perth from Chicago, IL?

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

Distance from Chicago to Perth

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

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

What is the time difference between Chicago and Perth?

The time difference between Chicago and Perth is 14 hours. Perth is 14 hours ahead of Chicago.

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

On average, flying from Chicago to Perth 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 Chicago to Perth

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

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