How far is Colombo from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and Colombo (Ratmalana Airport) is 8985 miles / 14461 kilometers / 7808 nautical miles.
Chicago O'Hare International Airport – Ratmalana Airport
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Distance from Chicago to Colombo
There are several ways to calculate the distance from Chicago to Colombo. Here are two standard methods:
Vincenty's formula (applied above)- 8985.442 miles
- 14460.668 kilometers
- 7808.136 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- 8978.010 miles
- 14448.706 kilometers
- 7801.677 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 Colombo?
The estimated flight time from Chicago O'Hare International Airport to Ratmalana Airport is 17 hours and 30 minutes.
What is the time difference between Chicago and Colombo?
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Ratmalana Airport (RML)
On average, flying from Chicago to Colombo generates about 1 145 kg of CO2 per passenger, and 1 145 kilograms equals 2 524 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Chicago to Colombo
See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Ratmalana Airport (RML).
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 | Ratmalana Airport |
|---|---|
| City: | Colombo |
| Country: | Sri Lanka  |
| IATA Code: | RML |
| ICAO Code: | VCCC |
| Coordinates: | 6°49′19″N, 79°53′10″E |