How far is Brest from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Brest (Brest Bretagne Airport) is 3932 miles / 6328 kilometers / 3417 nautical miles.

Distance from Rockford to Brest

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

Vincenty's formula (applied above)

• 3932.239 miles
• 6328.325 kilometers
• 3417.022 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

• 3921.428 miles
• 6310.926 kilometers
• 3407.627 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 Rockford to Brest?

The estimated flight time from Chicago Rockford International Airport to Brest Bretagne Airport is 7 hours and 56 minutes.

What is the time difference between Rockford and Brest?

The time difference between Rockford and Brest is 7 hours. Brest is 7 hours ahead of Rockford.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Brest Bretagne Airport (BES)

On average, flying from Rockford to Brest generates about 448 kg of CO2 per passenger, and 448 kilograms equals 987 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Brest

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Brest Bretagne Airport (BES).

Airport information

Origin	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

Destination	Brest Bretagne Airport
City:	Brest
Country:	France
IATA Code:	BES
ICAO Code:	LFRB
Coordinates:	48°26′52″N, 4°25′6″W