How far is Tainan from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Tainan (Tainan Airport) is 7617 miles / 12258 kilometers / 6619 nautical miles.

Distance from Chicago to Tainan

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

Vincenty's formula (applied above)

• 7617.038 miles
• 12258.435 kilometers
• 6619.025 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

• 7604.364 miles
• 12238.037 kilometers
• 6608.011 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 Tainan?

The estimated flight time from Chicago O'Hare International Airport to Tainan Airport is 14 hours and 55 minutes.

What is the time difference between Chicago and Tainan?

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

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Tainan Airport (TNN)

On average, flying from Chicago to Tainan generates about 943 kg of CO2 per passenger, and 943 kilograms equals 2 078 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to Tainan

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

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	Tainan Airport
City:	Tainan
Country:	Taiwan
IATA Code:	TNN
ICAO Code:	RCNN
Coordinates:	22°57′1″N, 120°12′21″E