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

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

Driving distance from Chicago (ORD) to Roanoke (ROA) is 683 miles / 1099 kilometers and travel time by car is about 12 hours 25 minutes.

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

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

## How far is Roanoke from Chicago?

There are several ways to calculate distances between Chicago and Roanoke. 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 Chicago 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 Roanoke–Blacksburg Regional Airport
City: Roanoke, VA
Country: United States
IATA Code: ROA
ICAO Code: KROA
Coordinates: 37°19′31″N, 79°58′31″W

## Time difference and current local times

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

CDT

EDT

## Carbon dioxide emissions

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

## Frequent Flyer Miles Calculator

Chicago (ORD) → Roanoke (ROA).

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

### In total

Total frequent flyer miles:
531

Round trip?