How far is Rockford, IL, from Boston, MA?

The distance between Boston (Logan International Airport) and Rockford (Chicago Rockford International Airport) is 926 miles / 1490 kilometers / 804 nautical miles.

The driving distance from Boston (BOS) to Rockford (RFD) is 1079 miles / 1737 kilometers, and travel time by car is about 20 hours 19 minutes.

Distance from Boston to Rockford

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

Vincenty's formula (applied above)

• 925.623 miles
• 1489.646 kilometers
• 804.345 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

• 923.188 miles
• 1485.727 kilometers
• 802.228 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 Boston to Rockford?

The estimated flight time from Logan International Airport to Chicago Rockford International Airport is 2 hours and 15 minutes.

What is the time difference between Boston and Rockford?

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

Flight carbon footprint between Logan International Airport (BOS) and Chicago Rockford International Airport (RFD)

On average, flying from Boston to Rockford generates about 146 kg of CO2 per passenger, and 146 kilograms equals 321 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Boston to Rockford

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

Airport information

Origin	Logan International Airport
City:	Boston, MA
Country:	United States
IATA Code:	BOS
ICAO Code:	KBOS
Coordinates:	42°21′51″N, 71°0′18″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