How far is Lucknow from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Lucknow (Chaudhary Charan Singh Airport) is 7647 miles / 12307 kilometers / 6645 nautical miles.

Distance from Chicago to Lucknow

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

Vincenty's formula (applied above)

• 7647.395 miles
• 12307.289 kilometers
• 6645.405 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

• 7633.773 miles
• 12285.367 kilometers
• 6633.567 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 Lucknow?

The estimated flight time from Chicago O'Hare International Airport to Chaudhary Charan Singh Airport is 14 hours and 58 minutes.

What is the time difference between Chicago and Lucknow?

The time difference between Chicago and Lucknow is 11 hours 30 minutes. Lucknow is 11 hours 30 minutes ahead of Chicago.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Chaudhary Charan Singh Airport (LKO)

On average, flying from Chicago to Lucknow generates about 947 kg of CO2 per passenger, and 947 kilograms equals 2 088 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to Lucknow

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Chaudhary Charan Singh Airport (LKO).

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	Chaudhary Charan Singh Airport
City:	Lucknow
Country:	India
IATA Code:	LKO
ICAO Code:	VILK
Coordinates:	26°45′38″N, 80°53′21″E