✈ ORD → EZE
11H 31M IN A METAL TUBE. 5,623 MILES. EARN THE LEG.
Flight from Chicago to Buenos Aires
From O'Hare (ORD), USA North America → Ezeiza (EZE), Argentina South America
How long is the flight from Chicago to Buenos Aires?
A nonstop flight from Chicago (ORD) to Buenos Aires (EZE) takes about 11 hours 31 minutes, covering a great-circle distance of 5,623 miles (9,049 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
11h 31m
Nonstop, scheduled
Distance
5,623 mi
9,049 km · great-circle
Avg speed
785 km/h
Door-to-door including taxi
Time zones & jet lag
Chicago timezone
UTC-5
America/Chicago
Buenos Aires timezone
UTC-3
America/Argentina/Buenos_Aires
Time difference
+2h
2 hours ahead
Jet lag (rough)
~2d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.