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Return Flights from Chicago to Buenos Aires
ORD ⇄ EZE
Chicago to Buenos Aires return, a route covering 9,049 km each way with a typical flight time of 11h 08m. Buenos Aires is located in Argentina, in Americas. Fares and availability change constantly; the figures below reflect what's actually on file for this route today, not an estimate.
Real fares right now
Real one-way fares on file for the outbound leg — useful for picking the cheapest day to fly, even when booking return. The lowest fare on file is €275 on Mon Aug 24.
Cheapest day for the outbound leg
Weather in Buenos Aires by season
Based on the last 3 years of real historical data.
Nearby airports
- Chicago Midway International Airport (MDW)25 km
- Gary Chicago International Airport (GYY)57 km
- Michigan City Municipal Airport (MGC)95 km
- Jorge Newbery Airpark (AEP)31 km
Money-saving tips
- Book 4–8 weeks ahead of departure where possible — a general industry pattern, not specific to this route.
- Tuesday and Wednesday departures tend to be cheaper than weekend flights on most routes.
- Morning flights are often less expensive than midday or evening departures.
- Compare nearby departure and arrival airports — see the alternatives above.
- Flexible return dates widen your options considerably versus a fixed round-trip window.
Fare types explained
Most airlines sell several fare tiers on the same flight: Economy (the base fare, often with paid extras like seat selection and baggage), Premium Economy (more legroom, sometimes included baggage), Business (priority boarding, lounge access, flat or angled seating on longer routes), and First Class (offered by a shrinking number of airlines on select long-haul routes). Exact inclusions vary by airline and route — check the fare rules shown at booking.
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