# Distance between Boise, ID (BOI) and Rockford, IL (RFD)

Flight distance from Boise to Rockford (Boise Airport – Chicago Rockford International Airport) is 1374 miles / 2212 kilometers / 1194 nautical miles. Estimated flight time is 3 hours 6 minutes.

Driving distance from Boise (BOI) to Rockford (RFD) is 1636 miles / 2633 kilometers and travel time by car is about 26 hours 13 minutes.

## Map of flight path and driving directions from Boise to Rockford.

Shortest flight path between Boise Airport (BOI) and Chicago Rockford International Airport (RFD).

## How far is Rockford from Boise?

There are several ways to calculate distances between Boise and Rockford. Here are two common methods:

Vincenty's formula (applied above)
• 1374.178 miles
• 2211.525 kilometers
• 1194.128 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 1370.537 miles
• 2205.666 kilometers
• 1190.964 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).

## Airport information

A Boise Airport
City: Boise, ID
Country: United States
IATA Code: BOI
ICAO Code: KBOI
Coordinates: 43°33′51″N, 116°13′22″W

B 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

## Time difference and current local times

The time difference between Boise and Rockford is 1 hour. Rockford is 1 hour ahead of Boise.

MDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 172 kg (378 pounds).

## Frequent Flyer Miles Calculator

Boise (BOI) → Rockford (RFD).

Distance:
1374
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1374

Round trip?