O'Hare Intl

$361+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Jan 26 — Feb 21
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 December 27, 2025.

This Delta deal was found by Cheapflights users on 12/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:55 pmEZE - ORD
1 stop25h 00mDelta
Sun 1/115:30 amORD - EZE
1 stop24h 30mDelta
Deal found 12/26$981
This United Airlines deal was found by Cheapflights users on 12/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:55 pmEZE - ORD
1 stop20h 10mUnited Airlines
Sun 1/1112:45 pmORD - EZE
1 stop17h 35mUnited Airlines
Deal found 12/25$990
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:05 pmEZE - ORD
1 stop15h 57mUnited Airlines
Thu 1/14:00 pmORD - EZE
1 stop14h 20mUnited Airlines
Deal found 12/26$1,091
This Priceline deal was found by Cheapflights users on 12/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:40 amEZE - ORD
2 stops20h 40mAvianca
Thu 1/110:20 pmORD - EZE
1 stop14h 30mAvianca
Deal found 12/26$1,172
This Gotogate deal was found by Cheapflights users on 12/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:40 amEZE - ORD
2 stops20h 40mMultiple Airlines
Thu 1/13:35 pmORD - EZE
2 stops20h 35mMultiple Airlines
Deal found 12/26$1,215
This Air Canada deal was found by Cheapflights users on 12/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:45 pmEZE - ORD
3 stops53h 05mAir Canada
Sun 1/1110:00 amORD - EZE
2 stops26h 10mAir Canada
Deal found 12/26$1,291
This Copa Airlines deal was found by Cheapflights users on 12/25. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:41 amEZE - ORD
1 stop23h 24mCopa Airlines
Sun 1/47:35 amORD - EZE
1 stop14h 29mCopa Airlines
Deal found 12/25$1,298
This Avianca deal was found by Cheapflights users on 12/25. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:00 amAEP - ORD
1 stop16h 20mAvianca
Sun 1/118:52 amORD - AEP
2 stops17h 48mAvianca
Deal found 12/25$1,611
This LATAM Airlines deal was found by Cheapflights users on 12/26. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:55 pmEZE - ORD
1 stop14h 52mLATAM Airlines
Sun 1/410:00 amORD - EZE
2 stops17h 05mLATAM Airlines
Deal found 12/26$1,722
This FlightHub deal was found by Cheapflights users on 12/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:25 pmAEP - ORD
2 stops18h 27mLATAM Airlines
Sun 1/115:59 pmORD - AEP
2 stops17h 01mLATAM Airlines
Deal found 12/25$1,803
This Avianca deal was found by Cheapflights users on 12/26. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amAEP - ORD
1 stop16h 20mMultiple Airlines
Sun 1/48:51 amORD - AEP
2 stops17h 49mMultiple Airlines
Deal found 12/26$1,974
This Avianca deal was found by Cheapflights users on 12/25. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amAEP - ORD
1 stop16h 20mAvianca
Sun 1/48:51 amORD - AEP
2 stops17h 49mAvianca
Deal found 12/25$2,350

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 December 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$631
(eDestinos)

One-way from

$361
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$899
Provider with most accurate pricing for Buenos Aires (BUE)-Chicago O'Hare Intl flight deals.
Provider most trusted by Cheapflights users for Buenos Aires (BUE)-Chicago O'Hare Intl flights.
From Buenos Aires (BUE) to Chicago O'Hare Intl
One-way flight from Buenos Aires (BUE) to Chicago O'Hare Intl
Highest demand for flights based on searches. 4% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 27, 2025.
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

Buenos Aires

Fly to

O'Hare Intl

Route

Depart

Return

Price

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 3/20

4:45 pm-8:00 am

3 stops41h 15m

Chicago O'Hare Intl

Sun 4/19

12:50 pm-2:30 pm

2 stops23h 40m

$860

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 1/30

9:15 pm-8:57 am

1 stop14h 42m

Chicago O'Hare Intl

Fri 3/27

11:20 pm-9:00 pm

2 stops19h 40m

$922

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 2/3

11:20 pm-1:28 pm

1 stop17h 08m

Chicago O'Hare Intl

Wed 3/4

10:02 am-7:15 am

1 stop18h 13m

$936

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 2/10

12:15 pm-11:22 am

3 stops26h 07m

Chicago O'Hare Intl

Tue 2/17

10:20 pm-3:50 pm

1 stop14h 30m

$964

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 3/19

1:40 am-9:20 pm

1 stop21h 40m

Chicago O'Hare Intl

Sun 4/19

2:35 pm-5:45 am

1 stop13h 10m

$975

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 1/31

1:40 am-8:20 pm

1 stop21h 40m

Chicago O'Hare Intl

Mon 2/2

8:52 am-5:50 am

2 stops17h 58m

$978

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 2/18

10:25 pm-6:01 pm

2 stops22h 36m

Chicago O'Hare Intl

Sat 2/28

10:35 am-9:00 am

2 stops19h 25m

$981

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sun 2/8

7:00 am-8:20 pm

1 stop16h 20m

Chicago O'Hare Intl

Sun 2/15

3:40 pm-4:20 am

2 stops57h 40m

$1,141

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Tue 2/10

5:15 pm-10:05 am

2 stops19h 50m

Chicago O'Hare Intl

Tue 2/17

6:25 pm-4:00 pm

2 stops18h 35m

$1,289

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sat 1/24

9:50 am-10:06 pm

3 stops39h 16m

Chicago O'Hare Intl

Thu 3/26

7:00 am-8:40 pm

3 stops59h 40m

$1,291

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 33 results
1
2
3
4

Compare providers for flights from Buenos Aires to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buenos Aires to O'Hare Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buenos Aires-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buenos Aires-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, January is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $514). Flying from Buenos Aires to Chicago O'Hare Intl Airport in February is currently the most expensive (average of $1,224). 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.

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 December 27, 2025.
Read reviews from past customers who have flown Copa Airlines and 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.

Crew

8.1

Food

6.8

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

Crew

8.1

Food

6.8

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

Crew

8.1

Food

6.8

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

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?

    Air Canada, American Airlines, and LATAM Airlines can get you from Buenos Aires to Chicago O'Hare Intl Airport in just under 17h 08m. Your travel time can differ by up to 24h 07m. The distance from Buenos Aires to Chicago O'Hare Intl Airport is about 5619 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 $578, Avianca will fly you from Buenos Aires to Chicago O'Hare Intl Airport and back. In addition to Avianca, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Copa Airlines - these airlines can fly you to your destination from $694 and $750, respectively. Avianca is priced at 51% 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, January is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $514). Flying from Buenos Aires to Chicago O'Hare Intl Airport in February is currently the most expensive (average of $1,224). 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
Schaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora
Evanston

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.

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 December 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$578Average$1,140FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$694Average$1,270FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$750Average$1,186FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$831Average$1,347FlexibilityNo cancel feeOn-time69%
DeltaCheapest$884Average$974FlexibilityNo 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.