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

Currently priced at $914, American Airlines will fly you from Buenos Aires to Chicago O'Hare Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Avianca and Delta - these airlines can fly you to your destination from $938 and $965, respectively. American Airlines is priced at 33% 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 Arajet ($370), Avianca ($506), and WorldTicket ($589).

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

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

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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

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

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

Flights from Buenos Aires to Chicago O'Hare Intl Airport are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago O'Hare Intl Airport.

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

To save on the cost of your flight from Buenos Aires to Chicago O'Hare Intl Airport, book at least 25 days before your planned departure. Booking around this time can save you about 42% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $973 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,247.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, October can be a great choice for travel to Chicago O'Hare Intl Airport. Flights to Chicago O'Hare Intl Airport from Buenos Aires in October are about $1,271 on average during October, but can be found for as low as $746.

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.

$370+ Flights from Buenos Aires to Chicago O'Hare Intl Airport

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Cheap flight deals from Buenos Aires to O'Hare Intl

Round-trip from	$871 (Mytrip)
One-way from	$370 (Arajet)
Popular in	March
Cheapest in	July
Average price	$1,231

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

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

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Highest demand for flights based on searches. 17% potential increase in price ($291 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find 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 August 1, 2025.

Sat 9/1312:05 amAEP - ORD

3 stops47h 53mMultiple Airlines

Sun 9/216:30 amORD - AEP

3 stops38h 50mMultiple Airlines

Deal found 7/31

$871

Mon 11/37:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Sun 12/143:30 amORD - EZE

1 stop13h 45mMultiple Airlines

Deal found 7/29

$879

Wed 9/38:40 pmEZE - ORD

1 stop26h 42mAmerican Airlines

Wed 10/810:11 amORD - EZE

1 stop22h 04mAmerican Airlines

Deal found 7/30

$914

Mon 9/11:40 amEZE - ORD

1 stop13h 35mAvianca

Wed 9/172:35 pmORD - EZE

2 stops35h 50mAvianca

Deal found 7/30

$938

Tue 9/168:10 pmEZE - ORD

1 stop20h 23mDelta

Wed 10/221:25 pmORD - EZE

2 stops18h 20mDelta

Deal found 7/30

$965

Tue 9/23:55 amEZE - ORD

2 stops30h 42mLATAM Airlines

Wed 10/89:42 amORD - EZE

2 stops18h 28mLATAM Airlines

Deal found 7/30

$967

Wed 9/35:05 pmAEP - ORD

2 stops28h 04mLATAM Airlines

Wed 10/81:26 pmORD - AEP

2 stops24h 39mLATAM Airlines

Deal found 7/30

$967

Tue 9/169:00 pmEZE - ORD

1 stop29h 15mUnited Airlines

Wed 10/229:05 pmORD - EZE

1 stop32h 55mUnited Airlines

Deal found 7/30

$1,019

Fri 10/317:00 amAEP - ORD

1 stop16h 20mAvianca

Mon 11/1010:20 pmORD - AEP

1 stop28h 20mAvianca

Deal found 7/31

$1,120

Best flights from Buenos Aires to O'Hare Intl
Discover carefully curated flight deals from Buenos Aires to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2025.

Sat 9/1312:05 amAEP - ORD

3 stops47h 53mMultiple Airlines

Sun 9/216:30 amORD - AEP

3 stops38h 50mMultiple Airlines

Deal found 7/31

$871

Wed 9/38:40 pmEZE - ORD

1 stop26h 42mAmerican Airlines

Wed 10/810:11 amORD - EZE

1 stop22h 04mAmerican Airlines

Deal found 7/30

$914

Mon 9/11:40 amEZE - ORD

1 stop13h 35mAvianca

Wed 9/172:35 pmORD - EZE

2 stops35h 50mAvianca

Deal found 7/30

$938

Tue 9/168:10 pmEZE - ORD

1 stop20h 23mDelta

Wed 10/221:25 pmORD - EZE

2 stops18h 20mDelta

Deal found 7/30

$965

Tue 9/23:55 amEZE - ORD

2 stops30h 42mLATAM Airlines

Wed 10/89:42 amORD - EZE

2 stops18h 28mLATAM Airlines

Deal found 7/30

$967

Tue 9/169:00 pmEZE - ORD

1 stop29h 15mUnited Airlines

Wed 10/229:05 pmORD - EZE

1 stop32h 55mUnited Airlines

Deal found 7/30

$1,019

Mon 11/37:35 amEZE - ORD

1 stop15h 45mMultiple Airlines

Sun 12/143:30 amORD - EZE

1 stop13h 45mMultiple Airlines

Deal found 7/29

$879

Wed 9/35:05 pmAEP - ORD

2 stops28h 04mLATAM Airlines

Wed 10/81:26 pmORD - AEP

2 stops24h 39mLATAM Airlines

Deal found 7/30

$967

Fri 10/317:00 amAEP - ORD

1 stop16h 20mAvianca

Mon 11/1010:20 pmORD - AEP

1 stop28h 20mAvianca

Deal found 7/31

$1,120

Last-minute flights from Buenos Aires to O'Hare Intl
Discover last-minute flight deals from Buenos Aires to O'Hare Intl. Data last updated August 1, 2025 and is based on user searches.

Mon 8/47:00 amAEP - ORD

1 stop32h 15mMultiple Airlines

Tue 8/128:09 amORD - AEP

3 stops23h 11mMultiple Airlines

Deal found 7/29

$962

Mon 8/47:00 amAEP - ORD

1 stop32h 15mAvianca

Tue 8/1910:55 amORD - AEP

2 stops16h 45mAvianca

Deal found 7/30

$1,533

Fri 8/82:30 amEZE - ORD

3 stops31h 20mMultiple Airlines

Sat 8/236:56 amORD - EZE

3 stops36h 34mMultiple Airlines

Deal found 7/30

$1,030

Fri 8/81:40 amEZE - ORD

1 stop13h 35mAvianca

Sat 8/232:35 pmORD - EZE

2 stops36h 15mAvianca

Deal found 7/30

$1,058

Fri 8/810:30 pmEZE - ORD

2 stops17h 41mAmerican Airlines

Mon 9/82:40 pmORD - EZE

2 stops16h 15mAmerican Airlines

Deal found 7/31

$1,545

Fri 8/811:25 pmEZE - ORD

1 stop17h 25mAeromexico

Sun 9/71:50 amORD - EZE

1 stop17h 35mAeromexico

Deal found 7/29

$7,813

Sat 8/97:00 amAEP - ORD

3 stops26h 50mMultiple Airlines

Sat 8/235:05 amORD - AEP

2 stops21h 35mMultiple Airlines

Deal found 7/30

$1,102

Sat 8/97:00 amAEP - ORD

1 stop32h 15mAvianca

Sat 8/238:50 amORD - AEP

2 stops18h 50mAvianca

Deal found 7/30

$1,549

Tue 8/123:40 amAEP - ORD

2 stops19h 45mGOL

Sat 8/235:05 pmORD - AEP

2 stops18h 15mGOL

Deal found 7/31

$2,503

Wed 8/138:10 pmEZE - ORD

1 stop14h 27mDelta

Sat 8/231:30 pmORD - EZE

1 stop15h 15mDelta

Deal found 7/30

$1,207

Wed 8/1311:45 amAEP - ORD

2 stops24h 10mLATAM Airlines

Sat 8/231:30 pmORD - AEP

2 stops24h 35mLATAM Airlines

Deal found 7/30

$1,207

Wed 8/137:40 amEZE - ORD

2 stops26h 57mLATAM Airlines

Sat 8/235:45 amORD - EZE

2 stops22h 25mLATAM Airlines

Deal found 7/29

$1,222

One-way flights from Buenos Aires to O'Hare Intl
Search for one-way flight options from Buenos Aires to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 1, 2025.

Fri 12/59:15 pmEZE - ORD

1 stop14h 42mArajet

Deal found 7/31

$370

Fri 8/2910:10 pmAEP - ORD

3 stops37h 12mMultiple Airlines

Deal found 7/30

$421

Sat 11/229:55 pmEZE - ORD

2 stops26h 15mMultiple Airlines

Deal found 7/31

$466

Thu 8/281:40 amEZE - ORD

1 stop13h 35mAvianca

Deal found 7/30

$506

Tue 10/287:00 amAEP - ORD

1 stop16h 20mAvianca

Deal found 7/30

$522

Mon 12/159:15 pmEZE - ORD

1 stop28h 25mWorldTicket

Deal found 7/30

$589

Sat 12/1311:07 amEZE - ORD

1 stop37h 03mHahn Air

Deal found 7/30

$591

Tue 10/2810:05 amEZE - ORD

3 stops39h 52mLATAM Airlines

Deal found 7/30

$597

Tue 10/2810:30 pmAEP - ORD

3 stops27h 27mLATAM Airlines

Deal found 7/30

$597

Mon 12/154:45 pmEZE - ORD

2 stops21h 33mAir Canada

Deal found 7/30

$729

Cheapflights Fare Finder

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

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sat 9/13

12:05 am-9:58 pm

3 stops47h 53m

Chicago O'Hare Intl

Sun 9/21

6:30 am-11:20 pm

3 stops38h 50m

$871

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 11/3

7:35 am-8:20 pm

1 stop15h 45m

Chicago O'Hare Intl

Sun 12/14

3:30 am-8:15 pm

1 stop13h 45m

$879

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 9/3

8:40 pm-9:22 pm

1 stop26h 42m

Chicago O'Hare Intl

Wed 10/8

10:11 am-10:15 am

1 stop22h 04m

$914

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 9/1

1:40 am-1:15 pm

1 stop13h 35m

Chicago O'Hare Intl

Wed 9/17

2:35 pm-4:25 am

2 stops35h 50m

$938

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/16

8:10 pm-2:33 pm

1 stop20h 23m

Chicago O'Hare Intl

Wed 10/22

1:25 pm-9:45 am

2 stops18h 20m

$965

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/2

3:55 am-8:37 am

2 stops30h 42m

Chicago O'Hare Intl

Wed 10/8

9:42 am-6:10 am

2 stops18h 28m

$967

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Wed 9/3

5:05 pm-7:09 pm

2 stops28h 04m

Chicago O'Hare Intl

Wed 10/8

1:26 pm-4:05 pm

2 stops24h 39m

$967

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/16

9:00 pm-12:15 am

1 stop29h 15m

Chicago O'Hare Intl

Wed 10/22

9:05 pm-8:00 am

1 stop32h 55m

$1,019

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Fri 10/31

7:00 am-9:20 pm

1 stop16h 20m

Chicago O'Hare Intl

Mon 11/10

10:20 pm-5:40 am

1 stop28h 20m

$1,120

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 12/5

9:15 pm-8:57 am

1 stop14h 42m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 19 results

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, August is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $245). Flying from Buenos Aires to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 BUE to ORD?

Unlike at noon, when flights are generally more expensive, you can save up to 21% on flights from Buenos Aires to Chicago O'Hare Intl Airport by exploring options for tickets in the morning.

Reviews of airlines servicing O'Hare Intl

Read reviews from past customers who have flown Delta, LATAM Airlines, and United 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.

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Delta

8.0

Very good

7,981 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

LATAM Airlines

7.5

Good

1,822 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

United Airlines

7.4

Good

8,900 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Air Canada

7.1

Good

9,851 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Related info for your journey

What are the cheapest airlines flying from Buenos Aires to Chicago O'Hare Intl Airport round-trip?
Currently priced at $914, American Airlines will fly you from Buenos Aires to Chicago O'Hare Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Avianca and Delta - these airlines can fly you to your destination from $938 and $965, respectively. American Airlines is priced at 33% 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 Arajet ($370), Avianca ($506), and WorldTicket ($589).
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, August is the cheapest month in which you can book a flight from Buenos Aires to Chicago O'Hare Intl Airport (average of $245). Flying from Buenos Aires to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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.

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

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest$882	Average$1,141	FlexibilityNo cancel fee	On-time71%
American Airlines	Cheapest$928	Average$1,272	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$962	Average$1,217	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$969	Average$1,396	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$1,084	Average$1,385	FlexibilityNo cancel fee	On-time69%

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$370+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.

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

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Cheap flight deals from Buenos Aires to O'Hare Intl

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One-way from

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Find flight deals from Buenos Aires to O'Hare Intl

Cheapest flights from Buenos Aires to O'Hare IntlExplore 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 August 1, 2025.

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 August 1, 2025.

Cheapflights Fare Finder

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

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.

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?

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

Find hourly flight availability from Buenos Aires to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

Reviews of airlines servicing O'Hare Intl

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.

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

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

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

How can I 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?

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

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

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Alternative routes for Buenos Aires to O'Hare Intl

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

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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 August 1, 2025.