Distance between Chicago, IL (ORD) and Raleigh, NC (RDU)
Distance from Chicago to Raleigh (O'Hare International Airport – Raleigh–Durham International Airport) is 646 miles / 1040 kilometers / 562 nautical miles.
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Chicago - Raleigh
How far is Raleigh from Chicago?
There are several ways to calculate distances between Chicago and Raleigh. Here are two common methods:
Vincenty's formula (applied above)- 646.198 miles
- 1039.955 kilometers
- 561.531 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.
Haversine formula- 645.739 miles
- 1039.216 kilometers
- 561.132 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).
Flight duration
Estimated flight time from O'Hare International Airport (ORD) to Raleigh–Durham International Airport (RDU) is 1 hour 43 minutes.
Time difference and current local times
The time difference between Chicago and Raleigh is 1 hour. Raleigh is 1 hour ahead of Chicago.
Time Difference
Chicago, IL
Raleigh, NC
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 118 kg (261 pounds).
Airport information
| A | 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 |
| B | Raleigh–Durham International Airport |
|---|---|
| City: | Raleigh, NC |
| Country: | United States |
| IATA Code: | RDU |
| ICAO Code: | KRDU |
| Coordinates: | 35°52′39″N, 78°47′14″W |
Chicago to Raleigh flight path
Shortest flight path between O'Hare International Airport (ORD) and Raleigh–Durham International Airport (RDU).
Frequent Flyer Miles Calculator
Chicago (ORD) → Raleigh (RDU).
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