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O'Hare Intl

$439+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
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 May 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Thu 10/111:00 am
EZE
-
ORD
1 stop14h 40m
Arajet
Sat 10/2412:12 pm
ORD
-
EZE
1 stop13h 58m
Arajet
Deal found 5/26$753
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 9/39:45 am
EZE
-
ORD
1 stop15h 55m
Arajet
Mon 9/145:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 5/25$754
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 10/48:40 am
EZE
-
ORD
1 stop15h 30m
Arajet
Mon 10/195:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 5/26$773
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Thu 11/1211:00 am
EZE
-
ORD
1 stop14h 40m
Arajet
Fri 12/45:45 am
ORD
-
EZE
1 stop24h 31m
Arajet
Deal found 5/26$798
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Thu 10/111:00 am
EZE
-
ORD
1 stop14h 40m
Arajet
Fri 10/236:45 am
ORD
-
EZE
1 stop34h 55m
Arajet
Deal found 5/26$813
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 9/39:45 am
EZE
-
ORD
1 stop15h 55m
Arajet
Fri 9/186:45 am
ORD
-
EZE
1 stop22h 45m
Arajet
Deal found 5/25$819
This Arajet deal was found by Cheapflights users on 5/26. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:15 pm
EZE
-
ORD
1 stop28h 25m
Arajet
Fri 10/26:45 am
ORD
-
EZE
1 stop22h 00m
Arajet
Deal found 5/26$822
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Tue 9/155:30 pm
EZE
-
ORD
2 stops33h 32m
Multiple Airlines
Mon 9/285:30 am
ORD
-
EZE
1 stop16h 35m
Multiple Airlines
Deal found 5/26$830
This Kiwi.com deal was found by Cheapflights users on 5/26. 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 10/48:40 am
EZE
-
ORD
1 stop15h 30m
Arajet
Fri 10/236:45 am
ORD
-
EZE
1 stop34h 55m
Arajet
Deal found 5/26$832
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Wed 8/199:15 pm
EZE
-
ORD
1 stop28h 25m
Arajet
Mon 8/245:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 5/27$834
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 8/292:45 am
EZE
-
ORD
1 stop21h 25m
Arajet
Mon 9/145:30 am
ORD
-
EZE
1 stop16h 35m
Arajet
Deal found 5/25$836
This Arajet deal was found by Cheapflights users on 5/26. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:15 pm
EZE
-
ORD
1 stop28h 25m
Arajet
Fri 10/236:45 am
ORD
-
EZE
1 stop22h 00m
Arajet
Deal found 5/26$838

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 May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$753
(Kiwi.com)

One-way from

$439
(Kiwi.com)

Popular in

April

Cheapest in

December

Average price

$1,188
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. 7% potential increase in price ($86 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 May 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 May 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

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 8/15

9:15 pm-10:10 pm

1 stop26h 55m

Chicago O'Hare Intl

Mon 8/17

5:30 am-8:15 am

1 stop24h 45m

$925

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 8/13

3:48 am-1:02 am

1 stop23h 14m

Chicago O'Hare Intl

Sun 8/30

3:21 pm-10:26 pm

1 stop29h 05m

$1,124

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 9/10

5:25 am-1:02 am

1 stop21h 37m

Chicago O'Hare Intl

Sun 9/20

3:20 pm-10:26 pm

1 stop29h 06m

$1,124

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 9/2

8:10 pm-10:42 am

2 stops16h 32m

Chicago O'Hare Intl

Tue 9/15

1:50 pm-9:40 am

2 stops17h 50m

$1,127

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 9/10

1:10 pm-10:04 am

2 stops22h 54m

Chicago O'Hare Intl

Sun 9/20

2:00 pm-9:45 am

2 stops17h 45m

$1,127

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/1

8:10 pm-10:42 am

2 stops16h 32m

Chicago O'Hare Intl

Mon 9/14

3:42 pm-9:40 am

2 stops15h 58m

$1,127
Quickest round-trip

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 7/23

8:10 pm-8:35 am

1 stop14h 25m

Chicago O'Hare Intl

Wed 8/12

3:31 pm-9:45 am

1 stop16h 14m

$1,127

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Wed 8/12

3:45 pm-10:13 am

2 stops20h 28m

Chicago O'Hare Intl

Thu 8/27

11:23 am-7:40 am

2 stops18h 17m

$1,127

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Tue 9/15

8:05 pm-2:32 pm

2 stops20h 27m

Chicago O'Hare Intl

Tue 9/22

5:30 am-7:40 am

2 stops24h 10m

$1,127

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Mon 8/10

8:05 pm-2:09 pm

2 stops20h 04m

Chicago O'Hare Intl

Tue 8/25

10:33 am-7:40 am

2 stops19h 07m

$1,127

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

Showing 1-10 of 35 resultsSorted by cheapest first
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3
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  • 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, July is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $356). Flying from Buenos Aires to Chicago O'Hare Intl Airport in April is currently the most expensive (average of $1,051). 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?

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 May 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
1,574 reviews

Food

6.9

Entertainment

6.8

Crew

8.1

Boarding

7.8

Comfort

7.4

Overall

7.5

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
1,574 reviews
Copa Airlines
7.5
Good
1,574 reviews

Food

6.9

Entertainment

6.8

Crew

8.1

Boarding

7.8

Comfort

7.4

Overall

7.5

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
11,644 reviews
Copa Airlines
7.5
Good
1,574 reviews

Food

6.9

Entertainment

6.8

Crew

8.1

Boarding

7.8

Comfort

7.4

Overall

7.5

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?

    Arajet, Copa Airlines, and Delta can get you from Buenos Aires to Chicago O'Hare Intl Airport in just under 16h 32m. Your travel time can differ by up to 10h 23m. 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 48% 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, July is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $356). Flying from Buenos Aires to Chicago O'Hare Intl Airport in April is currently the most expensive (average of $1,051). 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
Rosemont
Schaumburg
Benton Harbor
Naperville
Lake Geneva
Delavan
Oakbrook Terrace
Gurnee
Downers Grove
Des Plaines
Hoffman Estates
Oak Brook
South Holland
Libertyville
Warrenville
Rockford
Great Lakes
Northbrook
Waukegan
Willowbrook

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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$578Average$979FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$694Average$1,108FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$750Average$1,094FlexibilityNo cancel feeOn-time70%
DeltaCheapest$884Average$1,124FlexibilityNo cancel feeOn-timeN/A

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