Air Miles Calculator

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

Distance from Roanoke–Blacksburg Regional Airport to O'Hare International Airport is 531 miles / 854 kilometers / 461 nautical miles.

Calculations with different 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).

Flight duration

Estimated flight time from Roanoke–Blacksburg Regional Airport (ROA) to O'Hare International Airport (ORD) is 1 hour 30 minutes.

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
Chicago

Roanoke, VA

 EST

Chicago, IL

 CST

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 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

Map

Flight map from Roanoke to Chicago.

Frequent Flyer Miles Calculator

Roanoke (ROA) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
531
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
531

Round trip?