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Chicago–St Augustine | ORD–UST
Calculations with different methods
- 905.980 miles
- 1458.033 kilometers
- 787.275 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
- 907.254 miles
- 1460.083 kilometers
- 788.382 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 Northeast Florida Regional Airport (UST) is 2 hours 12 minutes.
Time difference and current local times
The time difference between Chicago and St Augustine is 1 hour. St Augustine is 1 hour ahead of Chicago.
St Augustine, FL
Chicago to St Augustine flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → St Augustine (UST).