How far is Reading, PA, from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and Reading (Reading Regional Airport) is 632 miles / 1017 kilometers / 549 nautical miles.
The driving distance from Chicago (ORD) to Reading (RDG) is 733 miles / 1180 kilometers, and travel time by car is about 13 hours 34 minutes.
Chicago O'Hare International Airport – Reading Regional Airport
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Distance from Chicago to Reading
There are several ways to calculate the distance from Chicago to Reading. Here are two standard 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 planet.
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).
How long does it take to fly from Chicago to Reading?
The estimated flight time from Chicago O'Hare International Airport to Reading Regional Airport is 1 hour and 41 minutes.
What is the time difference between Chicago and Reading?
The time difference between Chicago and Reading is 1 hour. Reading is 1 hour ahead of Chicago.
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Reading Regional Airport (RDG)
On average, flying from Chicago to Reading generates about 117 kg of CO2 per passenger, and 117 kilograms equals 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
See the map of the 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  |
| 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 |
| IATA Code: | RDG |
| ICAO Code: | KRDG |
| Coordinates: | 40°22′42″N, 75°57′54″W |