Air Miles Calculator

Distance between Chicago, IL (ORD) and Raleigh, NC (RDU)

Flight distance from Chicago to Raleigh (Chicago O'Hare International Airport – Raleigh–Durham International Airport) is 646 miles / 1040 kilometers / 562 nautical miles. Estimated flight time is 1 hour 43 minutes.

Driving distance from Chicago (ORD) to Raleigh (RDU) is 810 miles / 1304 kilometers and travel time by car is about 14 hours 42 minutes.

Map of flight path and driving directions from Chicago to Raleigh.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Raleigh–Durham International Airport (RDU).

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).

Airport information


A Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of 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 Flag of United States
IATA Code: RDU
ICAO Code: KRDU
Coordinates: 35°52′39″N, 78°47′14″W

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

 CDT

Raleigh, NC

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 118 kg (261 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Raleigh (RDU).

Distance:
646
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
646

Round trip?