Calculations with different methods
- 4201.406 miles
- 6761.508 kilometers
- 3650.922 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
- 4190.695 miles
- 6744.269 kilometers
- 3641.614 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Adolfo Suárez Madrid–Barajas Airport (MAD) to O'Hare International Airport (ORD) is 8 hours 27 minutes.
Time difference and current local times
The time difference between Madrid and Chicago is 7 hours. Chicago is 7 hours behind Madrid.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 513 kg (1 131 pounds).
Madrid to Chicago flight map.
Frequent Flyer Miles Calculator
Madrid (MAD) → Chicago (ORD).