HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$397+ Cheap flights from Buenos Aires (BUE) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buenos Aires to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Buenos Aires to O'Hare Intl

Cheapest flights from Buenos Aires to O'Hare Intl
Explore the most affordable flight options available from Buenos Aires to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This Mytrip deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:15 pm
EZE
-
ORD
2 stops35h 05m
Multiple Airlines
Sat 9/2612:12 pm
ORD
-
EZE
1 stop13h 58m
Multiple Airlines
Deal found 7/25$832
This eDestinos deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 pm
EZE
-
ORD
1 stop15h 57m
Arajet
Mon 9/285:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 7/25$834
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:29 am
EZE
-
ORD
2 stops21h 28m
Multiple Airlines
Sun 11/13:20 am
ORD
-
EZE
1 stop13h 55m
Multiple Airlines
Deal found 7/24$835
This Arajet deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:45 am
EZE
-
ORD
1 stop32h 27m
Arajet
Fri 9/116:45 am
ORD
-
EZE
1 stop22h 45m
Arajet
Deal found 7/23$838
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:20 am
EZE
-
ORD
2 stops34h 52m
Multiple Airlines
Sat 9/2612:12 pm
ORD
-
EZE
1 stop13h 58m
Multiple Airlines
Deal found 7/25$842
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:00 am
EZE
-
ORD
1 stop14h 40m
Arajet
Sat 10/3111:27 am
ORD
-
EZE
1 stop14h 18m
Arajet
Deal found 7/24$846
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:00 am
EZE
-
ORD
1 stop14h 40m
Arajet
Fri 10/306:45 am
ORD
-
EZE
1 stop22h 00m
Arajet
Deal found 7/24$855
This Mytrip deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:45 am
EZE
-
ORD
1 stop15h 55m
Multiple Airlines
Sat 9/1912:12 pm
ORD
-
EZE
2 stops25h 33m
Multiple Airlines
Deal found 7/23$857
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:00 am
EZE
-
ORD
1 stop14h 40m
Multiple Airlines
Wed 11/48:00 am
ORD
-
EZE
2 stops18h 53m
Multiple Airlines
Deal found 7/24$859
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:21 pm
EZE
-
ORD
2 stops27h 59m
Multiple Airlines
Mon 8/245:30 am
ORD
-
EZE
1 stop16h 35m
Multiple Airlines
Deal found 7/23$862
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:30 am
EZE
-
ORD
2 stops40h 50m
Multiple Airlines
Sun 12/63:20 am
ORD
-
EZE
1 stop17h 45m
Multiple Airlines
Deal found 7/23$863
This Mytrip deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:45 am
EZE
-
ORD
1 stop21h 25m
Multiple Airlines
Sun 9/138:40 pm
ORD
-
EZE
3 stops33h 35m
Multiple Airlines
Deal found 7/23$865

Find flight deals from Buenos Aires to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$832
(Mytrip)

One-way from

$397
(Kiwi.com)

Popular in

April

Cheapest in

December

Average price

$1,379
Provider with most accurate pricing for Buenos Aires (BUE)-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buenos Aires (BUE)-Chicago O'Hare Intl flights.
Search Deals
From Buenos Aires (BUE) to Chicago O'Hare Intl
Search Deals
One-way flight from Buenos Aires (BUE) to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buenos Aires to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
Use the filters below to find and compare flights from Buenos Aires to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 9/3

9:45 am-11:40 pm

1 stop15h 55m

Chicago O'Hare Intl

Sat 9/19

12:12 pm-3:45 pm

2 stops25h 33m

$857

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/15

10:15 pm-2:20 pm

2 stops18h 05m

Chicago O'Hare Intl

Tue 9/22

1:17 pm-7:15 am

2 stops15h 58m

$942

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 9/14

5:25 am-1:02 am

1 stop21h 37m

Chicago O'Hare Intl

Mon 10/26

8:35 am-2:52 am

1 stop16h 17m

$958
Quickest round-trip

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sun 8/9

8:10 pm-8:44 am

1 stop14h 34m

Chicago O'Hare Intl

Thu 8/13

1:50 pm-9:40 am

2 stops17h 50m

$983

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 9/5

11:00 am-10:10 pm

1 stop37h 10m

Chicago O'Hare Intl

Sat 9/12

12:12 pm-4:10 am

1 stop13h 58m

$1,004

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 10/20

8:59 am-1:59 pm

1 stop31h 00m

Chicago O'Hare Intl

Thu 10/29

8:35 am-1:11 am

1 stop14h 36m

$1,042

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 9/18

9:15 pm-11:12 am

1 stop15h 57m

Chicago O'Hare Intl

Sun 9/27

8:05 am-11:30 am

2 stops25h 25m

$1,056

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Mon 9/14

7:00 am-9:20 pm

1 stop16h 20m

Chicago O'Hare Intl

Mon 9/21

11:20 pm-5:40 am

1 stop28h 20m

$1,067

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Mon 9/21

7:00 am-9:20 pm

1 stop16h 20m

Chicago O'Hare Intl

Tue 9/29

11:20 pm-5:40 am

1 stop28h 20m

$1,067

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 9/14

4:35 pm-11:21 am

2 stops20h 46m

Chicago O'Hare Intl

Mon 10/26

9:21 pm-1:55 am

2 stops50h 34m

$1,105

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 39 resultsSorted by cheapest first
1
2
3
4
  • Most accurate provider: When it comes to deals on Buenos Aires-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buenos Aires-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buenos Aires-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buenos Aires-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buenos Aires-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buenos Aires to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Buenos Aires with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buenos Aires to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Buenos Aires to Chicago O'Hare Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $833). Flying from Buenos Aires to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $1,326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Buenos Aires to Chicago O'Hare Intl Airport?

Airfare is below average for this route at the moment.
Buenos Aires to Chicago O'Hare Intl Airport flights typically cost between $1,170 and $1,344 in November.
The cheapest round-trip price found within the last 5 days was $715 on Arajet (Nov 1-Dec 4).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated July 27, 2026.
Read reviews from past customers who have flown American Airlines from Buenos Aires to Chicago O'Hare Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,837 reviews

Entertainment

6.8

Overall

7.1

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.
American Airlines
7.1
Good
11,837 reviews
American Airlines
7.1
Good
11,837 reviews

Entertainment

6.8

Overall

7.1

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.

Related info for your journey

Find useful and relevant information for your journey from Buenos Aires to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buenos Aires to Chicago O'Hare Intl Airport?

    American Airlines, Copa Airlines, and Avianca can get you from Buenos Aires to Chicago O'Hare Intl Airport in just under 16h 20m. Your travel time can differ by up to 5h 17m. The distance from Buenos Aires to Chicago O'Hare Intl Airport is about 5605 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Buenos Aires to Chicago O'Hare Intl Airport round-trip?

    Currently priced at $484, Copa Airlines will fly you from Buenos Aires to Chicago O'Hare Intl Airport and back. In addition to Copa Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Arajet and Avianca - these airlines can fly you to your destination from $506 and $578, respectively. Copa Airlines is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Buenos Aires to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Buenos Aires to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buenos Aires to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buenos Aires to O'Hare Intl.

  • Can I find deals for business class flights from Buenos Aires to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Buenos Aires to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buenos Aires to Chicago O'Hare Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $833). Flying from Buenos Aires to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $1,326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Benton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Racine
Great Lakes
Janesville
Joliet

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Buenos Aires to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Cordoba to O'Hare Intl flights

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

Discover the top 5 airlines that operate flights from Buenos Aires to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$484Average$1,024FlexibilityNo cancel feeOn-time70%
ArajetCheapest$506Average$932FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$578Average$766FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$694Average$1,108FlexibilityNo cancel feeOn-time71%
DeltaCheapest$884Average$966FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.