Air Miles Calculator

Distance between Roanoke, VA (ROA) and Chicago, IL (ORD)

Flight distance from Roanoke to Chicago (Roanoke–Blacksburg Regional Airport – Chicago O'Hare International Airport) is 531 miles / 854 kilometers / 461 nautical miles. Estimated flight time is 1 hour 30 minutes.

Driving distance from Roanoke (ROA) to Chicago (ORD) is 679 miles / 1093 kilometers and travel time by car is about 12 hours 24 minutes.

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

Shortest flight path between Roanoke–Blacksburg Regional Airport (ROA) and Chicago O'Hare International Airport (ORD).

How far is Chicago from Roanoke?

There are several ways to calculate distances between Roanoke and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 530.522 miles
  • 853.793 kilometers
  • 461.011 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
  • 529.982 miles
  • 852.923 kilometers
  • 460.542 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 Roanoke–Blacksburg Regional Airport
City: Roanoke, VA
Country: United States Flag of United States
IATA Code: ROA
ICAO Code: KROA
Coordinates: 37°19′31″N, 79°58′31″W

B 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

Time difference and current local times

The time difference between Roanoke and Chicago is 1 hour. Chicago is 1 hour behind Roanoke.

Time Difference

Roanoke, VA

 EDT

Chicago, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 103 kg (227 pounds).

Frequent Flyer Miles Calculator

Roanoke (ROA) → Chicago (ORD).

Distance:
531
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
531

Round trip?