How far is Calgary from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Calgary (Calgary International Airport) is 1327 miles / 2135 kilometers / 1153 nautical miles.

The driving distance from Rockford (RFD) to Calgary (YYC) is 1566 miles / 2521 kilometers, and travel time by car is about 29 hours 7 minutes.

Distance from Rockford to Calgary

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

Vincenty's formula (applied above)

• 1326.829 miles
• 2135.325 kilometers
• 1152.983 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

• 1323.913 miles
• 2130.632 kilometers
• 1150.449 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 Calgary?

The estimated flight time from Chicago Rockford International Airport to Calgary International Airport is 3 hours and 0 minutes.

What is the time difference between Rockford and Calgary?

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

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Calgary International Airport (YYC)

On average, flying from Rockford to Calgary generates about 169 kg of CO2 per passenger, and 169 kilograms equals 372 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Rockford to Calgary

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

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	Calgary International Airport
City:	Calgary
Country:	Canada
IATA Code:	YYC
ICAO Code:	CYYC
Coordinates:	51°6′50″N, 114°1′11″W