The flight distance from California (CA) to Illinois (IL) is:

1,688 miles / 2 716 km

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Flight path from California to Illinois

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Distance from California to Illinois

The total distance from California to Illinois is 1,688 miles.

This is equivalent to 2 716 kilometers or 1,467 nautical miles.

Your trip begins in the state of California.
It ends in the state of Illinois.

Your flight direction from California to Illinois is East (71 degrees from North).

The distance calculator helps you figure out how far it is to fly from California to Illinois. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

California (CA)

State: California
Country: United States
Category: states

Illinois (IL)

State: Illinois
Country: United States
Category: states

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.