Calculations with different methods
- 654.320 miles
- 1053.026 kilometers
- 568.589 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
- 652.683 miles
- 1050.392 kilometers
- 567.166 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 Lehigh Valley International Airport (ABE) is 1 hour 44 minutes.
Time difference and current local times
The time difference between Chicago and Allentown is 1 hour. Allentown is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 108 kg (238 pounds).
Chicago to Allentown flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Allentown (ABE).