The cheapest times to fly from ORD to EZE are

  • January 15th to January 28th
  • March 5th to March 25th
  • April 16th to June 10th
  • September 3rd to December 9th (except the weeks of October 8th and October 15th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ORD to EZE is early to mid March. Prices can be as high as $1760 for Saturday flights during late December, or as low as $1005 for Tuesday flights around early to mid March.


When to Fly to Buenos Aires

Flying from Chicago, IL (ORD) to Ezeiza (EZE) will usually cost between $1005 to $1328 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid March with an average ticket price of $1009. Due to high demand the most expensive time to fly is late December, with an average price of $1563. Planning your trip to low-cost times can easily save you $553 on economy flights and even more on first-class flights. Generally, any price below $1036 can be considered a good price for a round-trip ORD to EZE flight.

See below for a graph of average weekly prices for the ORD to EZE route. All prices are for round-trip tickets in USD.

ORD to EZE Flight Prices

Compared to other flights, the ORD to EZE flight is priced close to the average and costs about as much as the average flight leaving from Chicago. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to EZE, and Monday the cheapest day to fly back into ORD. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $59 (5%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1048. Return trip prices are from the EZE to ORD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ORD to EZE can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 6 minutes may not be realistic.


Flight Hacking ORD to EZE

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ORD to EZE — but Champion Traveler does!

Hack #1: Lima (ORD > LIM > EZE)

  • Price for both tickets: $932
  • Average savings: $105 (10.09%)

See ORD to LIM flights

Hack #2: Santiago (ORD > SCL > EZE)

  • Price for both tickets: $1026
  • Average savings: $11 (1.01%)

See ORD to SCL flights


Flight Questions Answered

Still have questions about flying from ORD to EZE? We’ve got answers.

Which airlines fly this route?

You can find 27 major airlines flying this route most often: Aerolineas Argentinas, Aeromexico, Air Canada, Air France, Alitalia, American, Austrian, Avianca, Azul, British Airways, Brussels Airlines, COPA, Delta, Emirates, Ethiopian, Etihad, Iberia, JetBlue, Kenya Airways, KLM, LATAM, Lufthansa, Qatar Airways, South African, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Ministro Pistarini Airport to Chicago O’Hare International Airport?

The distance between the two airports is roughly 5622 miles or 9048 kilometers.

How long does it take to fly from ORD to EZE?

The real-world flight time for a nonstop ORD to EZE flight is about 11 hour 6 minutes.

How many flights go between Chicago, IL and Ezeiza?

It depends on the day of the week and the date, but a typical day might have around 76 available flights from ORD to EZE.


Airport Location Info


Departing Airport

Origination code ORD
Origination airport name Chicago O’Hare International Airport
City Chicago, IL
Country the United States
Latitude 42
Longitude -87.9

Return Airport

Destination code EZE
Destination airport name Ministro Pistarini Airport
City Ezeiza
Country Argentina
Latitude -34.8
Longitude -58.5


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.