Map of flight path and driving directions from Chicago to Tucson.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Tucson International Airport (TUS).
How far is Tucson from Chicago?
There are several ways to calculate distances between Chicago and Tucson. Here are two common methods:Vincenty's formula (applied above)
- 1437.020 miles
- 2312.659 kilometers
- 1248.736 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
- 1435.052 miles
- 2309.492 kilometers
- 1247.026 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).
Time difference and current local times
The time difference between Chicago and Tucson is 2 hours. Tucson is 2 hours behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 176 kg (387 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Tucson (TUS).