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ORD - EZE

$351 Find cheap flights from Chicago O'Hare Airport to Buenos Aires

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Buenos Aires departing on 6/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/2
Sun 6/9

Search hundreds of travel sites at once for deals on flights to Buenos Aires

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Buenos Aires.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Buenos Aires.
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

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Cheap flight deals from O'Hare Intl to Buenos Aires (ORD-EZE)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Buenos Aires that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:00 pm - 12:05 amORD-EZE
30h 05m2 stops
8:00 am - 6:57 pmEZE-ORD
36h 57m3 stops
Sun, Aug 18 - Tue, Aug 27
4:00 pm - 4:35 amORD-EZE
34h 35m3 stops
8:00 am - 6:57 pmEZE-ORD
36h 57m3 stops
Sun, Aug 18 - Tue, Aug 27
2:01 am - 9:10 pmORD-EZE
17h 09m1 stop
11:10 pm - 12:37 pmEZE-ORD
15h 27m1 stop
$938Aeromexico
Find Deal
Tue, May 28 - Mon, Jun 24
2:10 pm - 9:10 pmORD-EZE
29h 00m2 stops
11:10 pm - 2:10 pmEZE-ORD
41h 00m2 stops
$939Aeromexico
Find Deal
Fri, Jun 14 - Sat, Jun 22
7:56 am - 12:52 amORD-EZE
14h 56m1 stop
2:36 am - 12:15 amEZE-ORD
23h 39m1 stop
$1,002Copa Airlines
Find Deal
Tue, Aug 27 - Wed, Sep 18
11:32 am - 10:00 amORD-EZE
20h 28m1 stop
9:29 pm - 5:31 pmEZE-ORD
22h 02m1 stop
$1,014American Airlines
Find Deal
Thu, May 30 - Tue, Jun 11
9:55 am - 6:55 amORD-EZE
19h 00m2 stops
9:54 pm - 3:46 pmEZE-ORD
19h 52m2 stops
$1,015American Airlines
Find Deal
Tue, May 14 - Tue, May 21
3:10 pm - 7:47 amORD-EZE
14h 37m1 stop
10:36 am - 12:15 amEZE-ORD
15h 39m1 stop
$1,027Copa Airlines
Find Deal
Wed, Oct 9 - Sun, Oct 20
9:22 am - 6:15 amORD-EZE
18h 53m2 stops
6:10 am - 11:59 pmEZE-ORD
19h 49m2 stops
$1,034Delta
Find Deal
Wed, Jul 10 - Wed, Aug 7
1:32 pm - 9:40 amORD-EZE
18h 08m2 stops
9:30 pm - 4:33 pmEZE-ORD
21h 03m2 stops
$1,038Delta
Find Deal
Mon, May 13 - Mon, May 20

Flights from O'Hare Intl to Buenos Aires - Travel Insights & Trends

Get data-powered insights and trends into flights from O'Hare Intl to Buenos Aires to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Buenos Aires?

The average price of all flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport clicked on KAYAK for each day over the last 12 months.
For Chicago O'Hare Airport to Buenos Aires, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Buenos Aires back to Chicago O'Hare Airport, the best deals are generally found on Thursday, with Saturday being the most expensive.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport is September, where tickets cost $895 on average. On the other hand, the most expensive months are December and January, where the average cost of tickets is $1,533 and $1,361 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 15 days before departure.

Which airlines provide the cheapest flights from Chicago O'Hare Airport to Buenos Aires?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Chicago O'Hare Airport to Buenos Aires found by KAYAK users in the last 72 hours was for $809 on Avianca, followed by Aeromexico ($938). One-way flight deals have also been found from as low as $416 on Avianca and from $683 on Aerolineas Argentinas.

Good to know

Low season

October

High season

March

Cheapest flight

$351
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Chicago O'Hare Airport to Buenos Aires

When to book flights from O'Hare Intl to Buenos Aires

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Buenos Aires based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Buenos Aires flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Buenos Aires Ministro Pistarini Airport was $351 for a one-way ticket and $730 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Buenos Aires?

    Yes, you’ll need a passport to travel to Buenos Aires from Chicago O'Hare Airport.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Buenos Aires?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Buenos Aires?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Chicago O'Hare Airport and Buenos Aires, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Buenos Aires, Delta or Copa Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Buenos Aires are Delta and Copa Airlines. With an average price for the route of $1,191 and an overall rating of 8.0, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $1,621 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Buenos Aires?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Buenos Aires.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Buenos Aires?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Buenos Aires?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buenos Aires with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and EZE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Buenos Aires?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from O'Hare Intl to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Buenos Aires. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to Buenos Aires? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10858 reviews
8.0Entertainment
7.4Food
7.9Comfort
8.2Boarding
8.6Crew
Airline reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

8.0 ExcellentAnonymous, May 2024ATL - ATW
Read more about Delta reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

Copa performed as expected for the amount of money I was willing to spend for the flight; it wasn’t exceptional but it was not bad in any way either. The crew was good; friendly and straightforward. The food was airplane food, so no expectations there and the entertainment was lacking but that was my fault for owning an IPhone with a charging port that’s not compatible with the rest of the world. I’d fly Copa again.

Left my bags in origin city on a business class ticket , spent about 2-3 days in the same clothes plus the flight .

the planes are not modern there are no phone chargers

As usual, the flight with normal legroom was not very comfortable, but the second flight was much better because we had paid for extra legroom. It was very nice to check our bags without an extra fee.

LOCKED MY BAG WITHOUT CONSENT. Had to have my zippers cut upon arrival in Costa Rica.

Pros: "The seats in economy were confortable. The best thing was Copa gave us seats in the second line and my family traveled together."
Cons: "Coffe service could better the experience"
Pros: "The crew was very interested on help and attentive with the passengers. But the seat wasn't comfortable. The design of the cushion is not the best to be seating"
Pros: "You were on time, that is the most important thing in a fly"
Cons: "You could improve your entertainment, you are not a cheap company"
Pros: "That there was seltzer"
Cons: "The management of preparing the flight and plane so that it was ready for the trip!!"
Pros: "Copa was convenient and easy. Very easy boarding process and I appreciated the day flight."
Cons: "This is a business class that is equivalent to a US carrier domestic first class. Good seats, not lay flat but wide on my 737-800. The food and service emulated say American Airlines Domestic 1C as well. Everything was just good enough, and much cheaper that international business on the majors."

Some entertainment and food/snack service would have been nice

All the pessengers should be wait in a line útil the creo and piloto are arrived.

Planes seat could be bigger very uncomfortable for tall humans.

1 hour waiting for suitcases to come out traveling in business class and food in business class is a sandwich? Avoid Aeromexico .

No space reserved for anyone who didn’t have underseat in front of them. Made it inconvenient to get the backs secured. No inflight entertainment in the 190. Bring your own! Food was excellent and we were surprised to get a full breakfast.

I like the plane , but i was 50 mts before my fly and they didn’t let me document my luggage, so they told my that I have to leave my luggage or buy an others tickets , because they didn’t want me to give me credit for the tickets I have so that is abuse from the company , and on the line it was 5 families with the same situation equal lime mine , I think they doing business with the tickets w people ,; Mexico has a bad working people, the rip money from turists, and is bad because give bad impression of the company that is aereomexico

Cons: "left Houston more than 2 hours later, arrive in Mexico over 2 am"
Cons: "El problema es que nunca pude cambiar mi vuelo y con ustedes fue imposible comunicarse para que me auxiliaran. Muy mal por ustedes no por la línea."
Pros: "The crew was amazing , the site is ok"
Cons: "I love Aeroméxico , thanks for de service and the food."
Pros: "Plenty a space between seats. Ver confortable seats and small entertainment screens!"
Cons: "Better selection of movie?"

Everything was as you would expect in coach - fine. Flight was close to on time.

No air in the middle rows. Had a hard time breathing. Was dying of heat.

Not very good, they nickel & dime you for better seats & pay extra for the checking in bag, bad service all the way around

Horrific checkin procedure with neither Delta nor Latam figuring out how to check me in. 4 hrs on customer support with both and both airlines pointing to each other who should do checking. I was not checked in until morning of flight, which for international flight is concerning.

It was a good experience, the flight was a little too long & the food was ok

the flight from Boston to Curitiba was on time actually 30 minutes earlier. latam was not able to unload the luggage for custom checkup in Sao Paulo ii took two and half hours . i missed the flight to Curitiba spend the night in hotel and then flying in the morning to Curitiba

Tough flight with turbulence… I was told by a fellow passenger that it is common. Nonetheless, very stressful. Cordial staff.

Very unprofessional staff in the checking and boarding. There was no space for my carry-on bag, which is understandable for a full flight. However, the rudeness in answering my questions about my bag were unnecessary. Shaming and threatening a passenger to be left behind was something I had never experienced (I am 57 years old and a Skymiles member) before. At a minimum, the boarding staff (Krystal Mejia and her manager Dee) should undergo further training on cultural sensitivity and professional skills on speaking with passengers. Krystal, just because I have dark hair and “look Latina” does not mean I can speak Spanish. Your assumption and threatening words until the very ending of my boarding (door of the airplane) were not only unnecessary and stressful but something that a passenger should not experience before boarding.

The flight from PDX to New York was cancelled, and I got rebooked one day later. Because of this I missed a meeting at my final destination, EZE. I now need to stay longer in Argentina, and was told the tariff difference was $780 plus $150 penalty! I am not using my return ticket, and have purchased a one way ticket EZE-PDX for $606 with another airline. SHAMEFUL

Cons: "Would not let us board with 25 minutes prior to departure Because they lock their doors 35 minutes prior"

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

We were delayed bc ground crew gave the flight crew the wrong paperwork. We taxiied to the runway then back to the gate to get the correct paperwork that no one bothered reviewing the first time we pushed back. Boarding was rude and stressful like it always is. Gate agents and flight attendants are all over 55 years of age, embittered by years of underpayment From AA leading to their passive agressive bitchiness for no reason.

Boarding time was easy & quick. Crew was excellent. In-flight entertainment was great/easy. Seats are too small and not enough room between rows: felt like a sardine/very cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

I don't like that I have to pay if I want extra leg room. The seats are so expensive; I sit in normal seats and my legs and knees cramp the entire flight. I never feel comfortable on AA flights.

Book cheap flights from Chicago to Buenos Aires

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to Buenos Aires found on KAYAK in the last 72 hours.
6/11Tue
3 stops
46h 31mORD-EZE
$351
5/22Wed
2 stops
38h 56mORD-EZE
$353
5/22Wed
3 stops
28h 30mORD-EZE
$355
6/11Tue
2 stops
33h 06mORD-EZE
$372
6/11Tue
1 stopAmerican Airlines
14h 25mORD-EZE
$717
10/10Thu
1 stopDelta
16h 00mORD-EZE
$727
10/11Fri
1 stopDelta
35h 40mORD-EZE
$743
7/27Sat
2 stopsLATAM Airlines
54h 15mORD-EZE
$780
5/21Tue
1 stopAeromexico
29h 59mORD-EZE
$1,512
7/26Fri
2 stopsAeromexico
39h 35mORD-EZE
$2,218

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Last minute flights from O'Hare Intl to Buenos Aires

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to Buenos Aires that are departing in the next 10 days.
5/7Tue
multi-stop
32h 59mORD-EZE
5/16Thu
multi-stop
34h 40mEZE-ORD
$966
5/7Tue
multi-stopDelta
13h 43mORD-EZE
5/16Thu
multi-stopDelta
17h 49mEZE-ORD
$1,034
5/7Tue
multi-stopAmerican Airlines
16h 40mORD-EZE
5/27Mon
multi-stopAmerican Airlines
21h 31mEZE-ORD
$1,037
5/5Sun
multi-stopUnited Airlines
32h 23mORD-EZE
5/14Tue
multi-stopUnited Airlines
14h 30mEZE-ORD
$1,044
5/7Tue
multi-stopAmerican Airlines
18h 45mORD-EZE
5/17Fri
multi-stopAmerican Airlines
19h 52mEZE-ORD
$1,062
5/5Sun
multi-stopUnited Airlines
32h 23mORD-EZE
5/17Fri
multi-stopUnited Airlines
22h 10mEZE-ORD
$1,069
5/5Sun
multi-stopAir Canada
25h 55mORD-EZE
5/20Mon
multi-stopAir Canada
24h 16mEZE-ORD
$1,233
5/7Tue
multi-stopAir Canada
25h 55mORD-EZE
5/27Mon
multi-stopAir Canada
19h 36mEZE-ORD
$1,239
5/6Mon
multi-stopAeromexico
17h 09mORD-EZE
5/27Mon
multi-stopAeromexico
39h 06mEZE-ORD
$1,258
5/7Tue
multi-stopAeromexico
17h 09mORD-EZE
5/26Sun
multi-stopAeromexico
17h 02mEZE-ORD
$1,686

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Chicago O'Hare Airport - Buenos Aires Flights

Departure:

Chicago O'Hare Airport (ORD)United States

Destination:

Buenos Aires (EZE)Argentina

Return flight deals:

Buenos Aires - Chicago O'Hare Airport

Cabin classes: