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O'Hare Intl

$374+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Apr 29 — May 61
Wed 4/29
Wed 5/6
1 adult, Economy
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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 March 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/28. 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 7/3011:00 am
EZE
-
ORD
1 stop14h 40m
Arajet
Sat 8/1512:12 pm
ORD
-
EZE
1 stop13h 58m
Arajet
Deal found 3/28$723
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:40 am
EZE
-
ORD
1 stop15h 30m
Arajet
Mon 9/75:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 3/26$737
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Sun 8/28:40 am
EZE
-
ORD
1 stop15h 30m
Arajet
Sat 8/1512:12 pm
ORD
-
EZE
1 stop13h 58m
Arajet
Deal found 3/28$758
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Fri 8/289:15 pm
EZE
-
ORD
1 stop15h 57m
Arajet
Mon 9/75:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 3/27$770
This eDestinos deal was found by Cheapflights users on 3/28. 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.
Sat 4/255:00 am
EZE
-
ORD
2 stops20h 59m
Multiple Airlines
Sat 5/912:12 pm
ORD
-
EZE
1 stop13h 58m
Multiple Airlines
Deal found 3/28$786
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Fri 8/219:15 pm
EZE
-
ORD
1 stop15h 57m
Arajet
Mon 9/75:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 3/27$790
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Sat 5/91:10 pm
EZE
-
ORD
1 stop22h 27m
Multiple Airlines
Fri 5/158:02 am
ORD
-
EZE
2 stops17h 58m
Multiple Airlines
Deal found 3/25$808
This eDestinos deal was found by Cheapflights users on 3/27. 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.
Sat 4/255:45 am
AEP
-
ORD
3 stops68h 02m
Multiple Airlines
Sat 5/93:21 pm
ORD
-
AEP
2 stops54h 34m
Multiple Airlines
Deal found 3/27$855
This Mytrip deal was found by Cheapflights users on 3/28. 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.
Mon 6/13:10 pm
AEP
-
ORD
2 stops32h 10m
Multiple Airlines
Thu 6/1111:20 pm
ORD
-
AEP
3 stops27h 00m
Multiple Airlines
Deal found 3/28$883
This Mytrip deal was found by Cheapflights users on 3/29. 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 4/235:45 am
AEP
-
ORD
3 stops33h 20m
Multiple Airlines
Wed 5/65:05 am
ORD
-
AEP
3 stops35h 15m
Multiple Airlines
Deal found 3/29$884
This eDestinos deal was found by Cheapflights users on 3/29. 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.
Mon 4/135:45 am
AEP
-
ORD
2 stops58h 05m
Multiple Airlines
Sat 5/23:52 pm
ORD
-
AEP
2 stops38h 38m
Multiple Airlines
Deal found 3/29$907
This Mytrip deal was found by Cheapflights users on 3/29. 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.
Wed 5/135:27 am
AEP
-
ORD
3 stops44h 29m
Multiple Airlines
Wed 5/208:30 am
ORD
-
AEP
2 stops19h 10m
Multiple Airlines
Deal found 3/29$909

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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$723
(Kiwi.com)

One-way from

$374
(eDestinos)

Popular in

November

Cheapest in

December

Average price

$992
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. 1% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 30, 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

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Thu 4/23

5:45 am-1:05 pm

3 stops33h 20m

Chicago O'Hare Intl

Wed 5/6

5:05 am-6:20 pm

3 stops35h 15m

$884

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 4/23

11:00 am-11:40 pm

1 stop14h 40m

Chicago O'Hare Intl

Wed 5/6

7:13 am-2:30 pm

3 stops29h 17m

$914

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Mon 4/13

5:45 am-1:50 pm

2 stops58h 05m

Chicago O'Hare Intl

Sat 5/2

3:52 pm-11:00 am

3 stops41h 08m

$915

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 8/1

9:15 pm-10:10 pm

1 stop26h 55m

Chicago O'Hare Intl

Mon 8/17

5:30 am-8:10 pm

2 stops36h 40m

$950

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sun 6/7

9:02 am-4:00 am

1 stop20h 58m

Chicago O'Hare Intl

Wed 9/9

8:01 am-2:30 am

1 stop16h 29m

$985

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 4/16

9:11 am-1:13 am

1 stop18h 02m

Chicago O'Hare Intl

Thu 4/23

3:05 pm-7:55 am

1 stop14h 50m

$1,006

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Wed 9/23

12:50 pm-8:34 am

2 stops21h 44m

Chicago O'Hare Intl

Tue 9/29

11:20 pm-4:05 am

1 stop26h 45m

$1,067

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sun 5/17

2:49 pm-2:06 pm

1 stop25h 17m

Chicago O'Hare Intl

Tue 6/23

3:21 pm-7:51 am

1 stop14h 30m

$1,140

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 5/13

2:49 pm-2:06 pm

1 stop25h 17m

Chicago O'Hare Intl

Wed 5/20

8:02 am-4:16 am

1 stop18h 14m

$1,140

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sat 4/25

7:00 am-9:20 pm

1 stop16h 20m

Chicago O'Hare Intl

Sat 5/9

11:20 pm-5:40 am

1 stop28h 20m

$1,181

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 42 resultsSorted by cheapest first
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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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 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, 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 March is currently the most expensive (average of $1,885). 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 March 30, 2026.
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.
Copa Airlines
7.5
Good
1,577 reviews

Entertainment

6.8

Food

6.8

Overall

7.5

Comfort

7.4

Boarding

7.8

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
Copa Airlines
7.5
Good
1,577 reviews
Copa Airlines
7.5
Good
1,577 reviews

Entertainment

6.8

Food

6.8

Overall

7.5

Comfort

7.4

Boarding

7.8

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
American Airlines
7.1
Good
11,534 reviews
Copa Airlines
7.5
Good
1,577 reviews

Entertainment

6.8

Food

6.8

Overall

7.5

Comfort

7.4

Boarding

7.8

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.

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?

    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 4h 38m. 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 $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 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Buenos Aires to Chicago O'Hare Intl Airport one-way?

    The cheapest airlines for a one-way flight from Buenos Aires to Chicago O'Hare Intl Airport are Avianca ($318), Arajet ($364), and American Airlines ($525).

  • 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 March is currently the most expensive (average of $1,885). 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
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Oakbrook Terrace
South Holland
Elk Grove Village
Libertyville
Warrenville
Oak Brook
Bridgeview
Beloit
Great Lakes
Lansing

Browse thousands of different options on Cheapflights for your next trip

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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 4 airlines flying from Buenos Aires to O'Hare Intl

Discover the top 4 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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$578Average$1,084FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$694Average$1,270FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$750Average$1,153FlexibilityNo cancel feeOn-time70%
DeltaCheapest$884Average$1,124FlexibilityNo cancel feeOn-timeN/A

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