How far is Rockford, IL, from Dayton, OH?

The distance between Dayton (Dayton International Airport) and Rockford (Chicago Rockford International Airport) is 300 miles / 483 kilometers / 261 nautical miles.

The driving distance from Dayton (DAY) to Rockford (RFD) is 373 miles / 601 kilometers, and travel time by car is about 7 hours 10 minutes.

Distance from Dayton to Rockford

There are several ways to calculate the distance from Dayton to Rockford. Here are two standard methods:

Vincenty's formula (applied above)

• 299.874 miles
• 482.601 kilometers
• 260.583 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

• 299.426 miles
• 481.879 kilometers
• 260.194 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 Dayton to Rockford?

The estimated flight time from Dayton International Airport to Chicago Rockford International Airport is 1 hour and 4 minutes.

What is the time difference between Dayton and Rockford?

The time difference between Dayton and Rockford is 1 hour. Rockford is 1 hour behind Dayton.

Flight carbon footprint between Dayton International Airport (DAY) and Chicago Rockford International Airport (RFD)

On average, flying from Dayton to Rockford generates about 69 kg of CO2 per passenger, and 69 kilograms equals 152 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Dayton to Rockford

See the map of the shortest flight path between Dayton International Airport (DAY) and Chicago Rockford International Airport (RFD).

Airport information

Origin	Dayton International Airport
City:	Dayton, OH
Country:	United States
IATA Code:	DAY
ICAO Code:	KDAY
Coordinates:	39°54′8″N, 84°13′9″W

Destination	Chicago Rockford International Airport
City:	Rockford, IL
Country:	United States
IATA Code:	RFD
ICAO Code:	KRFD
Coordinates:	42°11′43″N, 89°5′49″W