Distance between Chicago, IL (ORD) and Raleigh, NC (RDU)
Distance from O'Hare International Airport to Raleigh–Durham International Airport is 646 miles / 1040 kilometers / 562 nautical miles.
Calculations with different 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).
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
Raleigh
Chicago, IL
CST
Raleigh, NC
EST
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 |
Map
Flight map from Chicago to Raleigh.
Frequent Flyer Miles Calculator
Chicago (ORD) → Raleigh (RDU).
Elite level bonus (%):
Booking class bonus (%):
Air miles:
646
Elite level bonus:
0
Booking class bonus:
0
In total
Total frequent flyer miles:
646
Round trip?