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Distance between Chicago, IL (ORD) and Reading, PA (RDG)

Flight distance from Chicago to Reading (Chicago O'Hare International Airport – Reading Regional Airport) is 632 miles / 1017 kilometers / 549 nautical miles. Estimated flight time is 1 hour 41 minutes.

Driving distance from Chicago (ORD) to Reading (RDG) is 733 miles / 1180 kilometers and travel time by car is about 13 hours 30 minutes.

Chicago – Reading

Distance arrow
632
Miles
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1017
Kilometers
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549
Nautical miles

How far is Reading from Chicago?

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

Vincenty's formula (applied above)
  • 631.674 miles
  • 1016.582 kilometers
  • 548.910 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
  • 630.126 miles
  • 1014.090 kilometers
  • 547.565 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).

Flight Duration

Estimated flight time from Chicago to Reading is 1 hour 41 minutes.

Time difference and current local times

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

Chicago time to Reading time converter

Time in Chicago: 00:00 ⇆ Time in Reading: 00:00

Current local times

Chicago, IL

 CDT

Reading, PA

 EDT

Carbon dioxide emissions

On average flying from Chicago to Reading generates about 117 kg of CO2 per passenger, 117 kilograms is equal to 257 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Chicago to Reading

Shortest flight path between Chicago O'Hare International Airport (ORD) and Reading Regional Airport (RDG).

Airport information

Origin 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
Destination Reading Regional Airport
City: Reading, PA
Country: United States Flag of United States
IATA Code: RDG
ICAO Code: KRDG
Coordinates: 40°22′42″N, 75°57′54″W