Calculations with different methods
- 342.426 miles
- 551.082 kilometers
- 297.560 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
- 342.924 miles
- 551.883 kilometers
- 297.993 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from O'Hare International Airport (ORD) to Barkley Regional Airport (PAH) is 1 hour 8 minutes.
Time difference and current local times
There is no time difference between Chicago and Paducah.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 73 kg (160 pounds).
Chicago to Paducah flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Paducah (PAH).