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

A quick flight from Chicago O'Hare Intl Airport to Buenos Aires can take about 15h 04m. Copa Airlines provides one of the quickest options available for as low as $748. Airlines will cover a distance of 5619 mi. This flight may include one or multiple stops.

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

Cheapflights users have booked flights from Chicago O'Hare Intl Airport to Buenos Aires round-trip from $699. Other airlines that can offer you cheap pricing are Arajet, from $736, and Avianca, from $753. These flights start at 40% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from Chicago O'Hare Intl Airport to Buenos Aires?

Before booking your flight from Chicago O'Hare Intl Airport to Buenos Aires check out the most popular airlines for this route: American Airlines, Avianca or Copa Airlines.

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

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

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

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

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

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

$322+ Cheap Flights from Chicago O'Hare Intl Airport to Buenos Aires

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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”

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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Buenos Aires are usually found in July or March, booked 72 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Buenos Aires

Round-trip from	$718 (Priceline)
One-way from	$322 (Kiwi.com)
Popular in	December
Cheapest in	July
Average price	$1,108

From Chicago O'Hare Intl to Buenos Aires (BUE)

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One-way flight from Chicago O'Hare Intl to Buenos Aires (BUE)

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Highest demand for flights based on searches. 2% potential increase in price ($30 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from O'Hare Intl to Buenos Aires

Cheapest flights from O'Hare Intl to Buenos Aires
Explore the most affordable flight options available from O'Hare Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Sat 11/810:20 pmORD - EZE

1 stop23h 15mAvianca

Sun 11/167:35 amEZE - ORD

1 stop15h 45mAvianca

Deal found 9/15

$718

Tue 10/2811:20 pmORD - EZE

1 stop14h 30mAvianca

Thu 11/277:35 amEZE - ORD

1 stop15h 45mAvianca

Deal found 9/16

$747

Wed 11/196:56 amORD - EZE

1 stop14h 57mCopa Airlines

Sun 11/232:32 pmEZE - ORD

1 stop25h 14mCopa Airlines

Deal found 9/15

$748

Thu 10/2310:27 amORD - EZE

2 stops36h 58mMultiple Airlines

Wed 11/57:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Deal found 9/16

$762

Mon 9/228:02 amORD - EZE

1 stop18h 11mCopa Airlines

Mon 9/2910:06 amEZE - ORD

1 stop16h 15mCopa Airlines

Deal found 9/15

$768

Wed 11/126:56 amORD - EZE

1 stop15h 04mCopa Airlines

Sat 11/223:57 amEZE - ORD

1 stop35h 49mCopa Airlines

Deal found 9/15

$782

Sat 10/257:59 amORD - EZE

1 stop14h 35mCopa Airlines

Sun 11/912:08 amEZE - ORD

1 stop15h 38mCopa Airlines

Deal found 9/16

$788

Fri 10/245:05 amORD - EZE

3 stops23h 05mMultiple Airlines

Tue 10/281:40 amEZE - ORD

1 stop21h 40mMultiple Airlines

Deal found 9/16

$793

Tue 11/184:35 amORD - EZE

1 stop16h 30mMultiple Airlines

Sun 11/237:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Deal found 9/15

$795

Sat 11/85:59 pmORD - EZE

2 stops30h 46mMultiple Airlines

Sun 11/167:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Deal found 9/15

$796

Fri 10/2410:27 amORD - AEP

2 stops19h 53mMultiple Airlines

Wed 10/292:30 pmAEP - ORD

3 stops24h 45mMultiple Airlines

Deal found 9/16

$797

Sat 11/88:50 pmORD - AEP

3 stops31h 40mMultiple Airlines

Sat 11/154:50 amAEP - ORD

2 stops34h 40mMultiple Airlines

Deal found 9/15

$803

Best flights from O'Hare Intl to Buenos Aires
Discover carefully curated flight deals from O'Hare Intl to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Tue 11/186:56 amORD - EZE

1 stop15h 04mCopa Airlines

Mon 12/13:41 amEZE - ORD

1 stop23h 24mCopa Airlines

Deal found 9/16

$748

Wed 11/1210:20 pmORD - AEP

1 stop28h 20mAvianca

Sun 11/237:00 amAEP - ORD

1 stop16h 20mAvianca

Deal found 9/15

$807

Mon 10/1310:27 amORD - AEP

2 stops19h 53mMultiple Airlines

Mon 10/2010:15 amAEP - ORD

2 stops29h 00mMultiple Airlines

Deal found 9/15

$818

Wed 11/196:56 amORD - EZE

1 stop14h 57mCopa Airlines

Sun 11/232:32 pmEZE - ORD

1 stop25h 14mCopa Airlines

Deal found 9/15

$748

Sat 11/810:20 pmORD - AEP

1 stop28h 20mAvianca

Sun 11/237:00 amAEP - ORD

1 stop16h 20mAvianca

Deal found 9/15

$807

Wed 11/196:56 amORD - EZE

1 stop14h 57mCopa Airlines

Thu 12/49:03 amEZE - ORD

1 stop18h 02mCopa Airlines

Deal found 9/15

$748

Thu 10/236:00 amORD - AEP

3 stops33h 30mMultiple Airlines

Tue 11/44:50 amAEP - ORD

2 stops34h 40mMultiple Airlines

Deal found 9/16

$824

Tue 9/238:02 amORD - EZE

1 stop14h 42mCopa Airlines

Fri 10/103:47 amEZE - ORD

1 stop22h 34mCopa Airlines

Deal found 9/16

$748

Wed 10/1511:13 amORD - AEP

3 stops43h 17mMultiple Airlines

Wed 10/2210:55 amAEP - ORD

3 stops32h 58mMultiple Airlines

Deal found 9/16

$847

Wed 11/56:56 amORD - EZE

1 stop15h 04mCopa Airlines

Tue 11/113:57 amEZE - ORD

1 stop23h 08mCopa Airlines

Deal found 9/16

$748

Wed 11/1910:20 pmORD - AEP

1 stop28h 20mAvianca

Thu 12/47:00 amAEP - ORD

1 stop16h 20mAvianca

Deal found 9/14

$920

Wed 11/127:35 amORD - AEP

3 stops44h 55mMultiple Airlines

Sat 11/2212:05 amAEP - ORD

2 stops23h 15mMultiple Airlines

Deal found 9/15

$900

Fri 11/286:56 amORD - EZE

1 stop18h 26mCopa Airlines

Sat 12/65:16 amEZE - ORD

1 stop21h 49mCopa Airlines

Deal found 9/16

$768

Tue 11/1110:20 pmORD - AEP

1 stop28h 20mAvianca

Fri 11/217:00 amAEP - ORD

1 stop16h 20mAvianca

Deal found 9/14

$949

Sat 11/88:50 pmORD - AEP

3 stops31h 40mMultiple Airlines

Sat 11/2212:05 amAEP - ORD

2 stops23h 15mMultiple Airlines

Deal found 9/15

$909

Wed 11/262:07 pmORD - EZE

1 stop14h 52mCopa Airlines

Sun 12/73:41 amEZE - ORD

1 stop23h 24mCopa Airlines

Deal found 9/15

$768

Thu 11/1310:20 pmORD - AEP

1 stop28h 20mAvianca

Fri 11/217:00 amAEP - ORD

1 stop16h 20mAvianca

Deal found 9/14

$949

Fri 11/146:56 amORD - EZE

1 stop14h 57mCopa Airlines

Mon 12/15:16 amEZE - ORD

1 stop21h 49mCopa Airlines

Deal found 9/15

$768

Fri 10/247:59 amORD - EZE

1 stop14h 35mCopa Airlines

Tue 10/283:57 amEZE - ORD

1 stop22h 59mCopa Airlines

Deal found 9/16

$768

Sat 10/257:59 amORD - EZE

1 stop14h 35mCopa Airlines

Mon 11/105:16 amEZE - ORD

1 stop21h 49mCopa Airlines

Deal found 9/16

$768

Last-minute flights from O'Hare Intl to Buenos Aires
Discover last-minute flight deals from O'Hare Intl to Buenos Aires. Data last updated September 16, 2025 and is based on user searches.

Mon 9/228:02 amORD - EZE

1 stop18h 11mCopa Airlines

Mon 9/2910:06 amEZE - ORD

1 stop16h 15mCopa Airlines

Deal found 9/15

$768

Tue 9/238:02 amORD - EZE

1 stop14h 42mCopa Airlines

Sat 10/115:08 amEZE - ORD

1 stop21h 13mCopa Airlines

Deal found 9/16

$748

Sun 10/127:43 pmORD - EZE

3 stops32h 12mMultiple Airlines

Sat 10/181:40 amEZE - ORD

1 stop13h 35mMultiple Airlines

Deal found 9/16

$799

Mon 10/1310:27 amORD - AEP

2 stops19h 53mMultiple Airlines

Mon 10/2010:15 amAEP - ORD

2 stops29h 00mMultiple Airlines

Deal found 9/15

$817

Wed 10/152:35 pmORD - EZE

2 stops21h 55mMultiple Airlines

Tue 10/211:40 amEZE - ORD

1 stop13h 35mMultiple Airlines

Deal found 9/16

$825

Mon 10/202:35 pmORD - EZE

1 stop22h 45mAvianca

Fri 11/77:35 amEZE - ORD

1 stop15h 45mAvianca

Deal found 9/15

$808

Thu 10/2310:27 amORD - EZE

2 stops36h 58mMultiple Airlines

Wed 11/57:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Deal found 9/16

$762

Thu 10/236:00 amORD - AEP

3 stops33h 30mMultiple Airlines

Tue 11/44:50 amAEP - ORD

2 stops34h 40mMultiple Airlines

Deal found 9/16

$824

Fri 10/245:05 amORD - EZE

3 stops23h 05mMultiple Airlines

Wed 10/297:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Deal found 9/16

$793

Fri 10/2410:27 amORD - AEP

2 stops19h 53mMultiple Airlines

Wed 10/292:30 pmAEP - ORD

3 stops24h 45mMultiple Airlines

Deal found 9/16

$797

Sat 10/257:59 amORD - EZE

1 stop14h 35mCopa Airlines

Sun 11/912:08 amEZE - ORD

1 stop15h 38mCopa Airlines

Deal found 9/16

$788

Tue 10/2811:20 pmORD - EZE

1 stop14h 30mAvianca

Thu 11/277:35 amEZE - ORD

1 stop15h 45mAvianca

Deal found 9/16

$747

One-way flights from O'Hare Intl to Buenos Aires
Search for one-way flight options from O'Hare Intl to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Mon 12/87:00 amORD - EZE

2 stops19h 50mMultiple Airlines

Deal found 9/14

$322

Thu 12/1110:20 pmORD - EZE

1 stop14h 30mAvianca

Deal found 9/14

$331

Sun 11/910:20 pmORD - EZE

1 stop14h 30mAvianca

Deal found 9/14

$333

Mon 10/1310:27 amORD - EZE

3 stops42h 33mMultiple Airlines

Deal found 9/13

$346

Sun 11/91:35 pmORD - EZE

3 stops35h 05mMultiple Airlines

Deal found 9/14

$348

Sat 11/1510:27 amORD - EZE

2 stops25h 43mMultiple Airlines

Deal found 9/16

$349

Tue 12/91:35 pmORD - AEP

3 stops52h 10mMultiple Airlines

Deal found 9/14

$349

Mon 12/810:20 pmORD - EZE

1 stop23h 15mAvianca

Deal found 9/14

$350

Sat 11/1510:20 pmORD - EZE

1 stop28h 30mAvianca

Deal found 9/16

$351

Sun 10/195:05 amORD - EZE

3 stops21h 45mMultiple Airlines

Deal found 9/14

$355

Sun 10/197:43 pmORD - AEP

3 stops42h 22mMultiple Airlines

Deal found 9/14

$355

Thu 12/117:00 amORD - EZE

2 stops19h 50mMultiple Airlines

Deal found 9/14

$365

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 11/18

6:56 am-1:00 am

1 stop15h 04m

Buenos Aires Ministro Pistarini

Mon 12/1

3:41 am-12:05 am

1 stop23h 24m

$748

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 11/19

6:56 am-12:53 am

1 stop14h 57m

Buenos Aires Ministro Pistarini

Sun 11/23

2:32 pm-12:46 pm

1 stop25h 14m

$748

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 11/19

6:56 am-12:53 am

1 stop14h 57m

Buenos Aires Ministro Pistarini

Thu 12/4

9:03 am-12:05 am

1 stop18h 02m

$748

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 9/23

8:02 am-12:44 am

1 stop14h 42m

Buenos Aires Ministro Pistarini

Fri 10/10

3:47 am-12:21 am

1 stop22h 34m

$748

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 11/5

6:56 am-1:00 am

1 stop15h 04m

Buenos Aires Ministro Pistarini

Tue 11/11

3:57 am-12:05 am

1 stop23h 08m

$748

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 11/28

6:56 am-4:22 am

1 stop18h 26m

Buenos Aires Ministro Pistarini

Sat 12/6

5:16 am-12:05 am

1 stop21h 49m

$768

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 11/26

2:07 pm-7:59 am

1 stop14h 52m

Buenos Aires Ministro Pistarini

Sun 12/7

3:41 am-12:05 am

1 stop23h 24m

$768

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 11/14

6:56 am-12:53 am

1 stop14h 57m

Buenos Aires Ministro Pistarini

Mon 12/1

5:16 am-12:05 am

1 stop21h 49m

$768

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 10/24

7:59 am-12:34 am

1 stop14h 35m

Buenos Aires Ministro Pistarini

Tue 10/28

3:57 am-12:56 am

1 stop22h 59m

$768

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sat 10/25

7:59 am-12:34 am

1 stop14h 35m

Buenos Aires Ministro Pistarini

Mon 11/10

5:16 am-12:05 am

1 stop21h 49m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 38 results

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

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from O'Hare Intl 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 Chicago O'Hare Intl Airport to Buenos Aires

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Buenos Aires?

The best time to book flights from Chicago O'Hare Intl Airport to Buenos Aires is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buenos Aires (average of $795). Flying from Chicago O'Hare Intl Airport to Buenos Aires in December is currently the most expensive (average of $1,260). 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.

What is the cheapest time of day to fly from ORD to BUE?

It’s typically best to fly out from Chicago O'Hare Intl Airport to Buenos Aires in the evening. Doing so could potentially save you 10% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Buenos Aires flight should consider departing on Sunday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Buenos Aires

Read reviews from past customers who have flown Delta, Copa Airlines, and United Airlines from Chicago O'Hare Intl Airport to Buenos Aires. 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.

Delta

8.0

Very good

7,957 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,957 reviews

Delta

8.0

Very good

7,957 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Copa Airlines

7.6

Good

1,531 reviews

Delta

8.0

Very good

7,957 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,924 reviews

Delta

8.0

Very good

7,957 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,957 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Avianca

6.7

Okay

2,435 reviews

Delta

8.0

Very good

7,957 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How long is the flight from Chicago O'Hare Intl Airport to Buenos Aires?
A quick flight from Chicago O'Hare Intl Airport to Buenos Aires can take about 15h 04m. Copa Airlines provides one of the quickest options available for as low as $748. Airlines will cover a distance of 5619 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Buenos Aires round-trip?
Cheapflights users have booked flights from Chicago O'Hare Intl Airport to Buenos Aires round-trip from $699. Other airlines that can offer you cheap pricing are Arajet, from $736, and Avianca, from $753. These flights start at 40% lower than the current average price 3 months from now.
Can I find deals for flights from O'Hare Intl to Buenos Aires that include hotel bookings?
Yes. In addition to deals on O'Hare Intl to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from O'Hare Intl to Buenos Aires?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Buenos Aires.
Can I find deals for business class flights from O'Hare Intl to Buenos Aires?
Yes. Cheapflights offers flight deals from O'Hare Intl to Buenos Aires 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 Chicago O'Hare Intl Airport to Buenos Aires?
Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buenos Aires (average of $795). Flying from Chicago O'Hare Intl Airport to Buenos Aires in December is currently the most expensive (average of $1,260). 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

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from O'Hare Intl to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Copa Airlines	Cheapest$699	Average$1,022	FlexibilityNo cancel fee	On-time70%
Arajet	Cheapest$736	Average$884	FlexibilityNo cancel fee	On-timeN/A
Avianca	Cheapest$753	Average$1,160	FlexibilityNo cancel fee	On-time71%
American Airlines	Cheapest$1,015	Average$1,245	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$1,023	Average$1,222	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$1,094	Average$1,217	FlexibilityNo cancel fee	On-time69%

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$322+ Cheap flights from O'Hare Intl (ORD) to Buenos Aires (BUE)

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.

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

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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Buenos Aires are usually found in July or March, booked 72 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Buenos Aires

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from O'Hare Intl to Buenos Aires

Cheapest flights from O'Hare Intl to Buenos AiresExplore the most affordable flight options available from O'Hare Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Explore the most affordable flight options available from O'Hare Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buenos Aires that are best for you.

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

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from O'Hare Intl with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Buenos Aires. Price data was last updated on September 12, 2025.

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

What is the cheapest time of day to fly from ORD to BUE?

Find hourly flight availability from O'Hare Intl to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Buenos Aires. Price data was last updated on September 8, 2024.

Reviews of airlines servicing Buenos Aires

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Buenos Aires. 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 Chicago O'Hare Intl Airport to Buenos Aires?

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

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

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

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

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

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 O'Hare Intl to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from O'Hare Intl to Buenos Aires

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Cheapest flights from O'Hare Intl to Buenos Aires
Explore the most affordable flight options available from O'Hare Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.