How far is Seattle, WA, from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Seattle (Seattle Boeing Field) is 1658 miles / 2669 kilometers / 1441 nautical miles.

The driving distance from Rockford (RFD) to Seattle (BFI) is 1982 miles / 3189 kilometers, and travel time by car is about 35 hours 8 minutes.

Distance from Rockford to Seattle

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

Vincenty's formula (applied above)

• 1658.241 miles
• 2668.680 kilometers
• 1440.972 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

• 1653.907 miles
• 2661.706 kilometers
• 1437.206 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 Seattle?

The estimated flight time from Chicago Rockford International Airport to Seattle Boeing Field is 3 hours and 38 minutes.

What is the time difference between Rockford and Seattle?

The time difference between Rockford and Seattle is 2 hours. Seattle is 2 hours behind Rockford.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Seattle Boeing Field (BFI)

On average, flying from Rockford to Seattle generates about 190 kg of CO2 per passenger, and 190 kilograms equals 418 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 Seattle

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Seattle Boeing Field (BFI).

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	Seattle Boeing Field
City:	Seattle, WA
Country:	United States
IATA Code:	BFI
ICAO Code:	KBFI
Coordinates:	47°31′47″N, 122°18′7″W