Air Miles Calculator

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

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

Time difference and current local times

The time difference between Chicago and Roanoke is 1 hour. Roanoke is 1 hour ahead of Chicago.

Time Difference

Chicago
Roanoke

Chicago, IL

 CST

Roanoke, VA

 EST

Airport information


A 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 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

Map

Flight map from Chicago to Roanoke.

Frequent Flyer Miles Calculator

Chicago (ORD) → Roanoke (ROA).

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?