How far is Reading, PA, from Decatur, IL?
The distance between Decatur (Decatur Airport) and Reading (Reading Regional Airport) is 684 miles / 1101 kilometers / 594 nautical miles.
The driving distance from Decatur (DEC) to Reading (RDG) is 766 miles / 1232 kilometers, and travel time by car is about 14 hours 42 minutes.
Decatur Airport – Reading Regional Airport
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Distance from Decatur to Reading
There are several ways to calculate the distance from Decatur to Reading. Here are two standard methods:
Vincenty's formula (applied above)- 683.873 miles
- 1100.588 kilometers
- 594.270 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- 682.168 miles
- 1097.842 kilometers
- 592.787 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 Decatur to Reading?
The estimated flight time from Decatur Airport to Reading Regional Airport is 1 hour and 47 minutes.
What is the time difference between Decatur and Reading?
The time difference between Decatur and Reading is 1 hour. Reading is 1 hour ahead of Decatur.
Flight carbon footprint between Decatur Airport (DEC) and Reading Regional Airport (RDG)
On average, flying from Decatur to Reading generates about 123 kg of CO2 per passenger, and 123 kilograms equals 271 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Decatur to Reading
See the map of the shortest flight path between Decatur Airport (DEC) and Reading Regional Airport (RDG).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″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 |