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$396+ Cheap flights from Chicago (CHI) 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUE
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Chicago to Buenos Aires are usually found in May or September, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Chicago to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Buenos Aires (BUE). 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 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$968
(Mytrip)

One-way from

$396
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,595
Provider with most accurate pricing for Chicago (CHI)-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Buenos Aires (BUE) flights.
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From Chicago (CHI) to Buenos Aires (BUE)
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One-way flight from Chicago (CHI) to Buenos Aires (BUE)
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High demand for flights, 10% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Chicago to Buenos Aires

Cheapest flights from Chicago to Buenos Aires
Explore the most affordable flight options available from Chicago to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/185:45 amORD - EZE
1 stop24h 35mUnited Airlines
Thu 12/2611:55 pmEZE - ORD
1 stop17h 45mUnited Airlines
Deal found 12/17$1,094
This Delta deal was found by Cheapflights users on 12/17. 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.
Thu 12/265:45 amORD - EZE
1 stop22h 30mDelta
Tue 2/410:25 pmEZE - ORD
1 stop22h 22mDelta
Deal found 12/17$1,133
This Priceline deal was found by Cheapflights users on 12/17. 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.
Sun 12/221:35 pmORD - EZE
2 stops32h 50mAvianca
Tue 12/245:50 amEZE - ORD
2 stops33h 25mAvianca
Deal found 12/17$1,175
This Ovago deal was found by Cheapflights users on 12/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2610:00 amORD - EZE
2 stops33h 03mLATAM Airlines
Tue 2/47:45 amEZE - ORD
2 stops19h 04mLATAM Airlines
Deal found 12/18$1,227
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/203:23 pmORD - EZE
1 stop14h 47mAmerican Airlines
Fri 12/2710:30 pmEZE - ORD
1 stop23h 48mAmerican Airlines
Deal found 12/16$1,364
This Delta deal was found by Cheapflights users on 12/17. 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.
Mon 12/235:03 pmMDW - EZE
1 stop12h 57mDelta
Tue 12/319:30 amEZE - MDW
1 stop15h 36mDelta
Deal found 12/17$1,373
This Mytrip deal was found by Cheapflights users on 12/18. 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 12/301:35 pmORD - EZE
2 stops36h 21mMultiple Airlines
Fri 1/108:00 amEZE - ORD
3 stops31h 29mMultiple Airlines
Deal found 12/18$1,421
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/235:40 amORD - AEP
2 stops30h 00mLATAM Airlines
Tue 12/319:05 pmAEP - ORD
2 stops38h 35mLATAM Airlines
Deal found 12/18$1,430
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Tue 12/241:35 pmORD - AEP
2 stops18h 55mMultiple Airlines
Sat 12/288:40 amAEP - ORD
2 stops30h 35mMultiple Airlines
Deal found 12/16$1,439
This Copa Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/186:54 amORD - EZE
1 stop14h 58mCopa Airlines
Fri 12/203:53 amEZE - ORD
1 stop22h 28mCopa Airlines
Deal found 12/17$1,502
This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:08 amMDW - EZE
2 stops29h 02mLATAM Airlines
Tue 12/247:10 pmEZE - MDW
2 stops17h 13mLATAM Airlines
Deal found 12/17$1,662
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:32 pmMDW - AEP
2 stops20h 08mLATAM Airlines
Tue 12/315:05 pmAEP - MDW
2 stops19h 18mLATAM Airlines
Deal found 12/17$1,739

Find flights from Chicago to Buenos Aires within your budget

Customize your flight search to find flights from Chicago to Buenos Aires 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 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 1/24

5:11 am-7:49 am

3 stops23h 38m

Buenos Aires Ministro Pistarini

Fri 1/31

3:40 pm-10:37 pm

3 stops33h 57m

$968

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 2/23

1:35 pm-5:05 am

2 stops36h 30m

Buenos Aires Ministro Pistarini

Sat 3/1

2:30 am-12:15 pm

2 stops36h 45m

$969

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 1/31

5:11 am-2:00 pm

3 stops29h 49m

Buenos Aires Jorge Newbery

Thu 2/6

12:05 am-8:13 pm

3 stops23h 08m

$975

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/12

11:35 am-2:25 pm

3 stops24h 50m

Buenos Aires Ministro Pistarini

Wed 3/19

4:00 pm-2:45 pm

3 stops24h 45m

$995

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Wed 3/12

10:10 am-6:00 am

2 stops17h 50m

Buenos Aires Ministro Pistarini

Wed 3/19

8:55 pm-4:04 pm

1 stop21h 09m

$1,024

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Wed 3/12

5:00 pm-6:30 pm

2 stops23h 30m

Buenos Aires Jorge Newbery

Wed 3/19

8:00 pm-11:59 am

2 stops17h 59m

$1,024

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/12

2:00 pm-9:45 am

1 stop17h 45m

Buenos Aires Ministro Pistarini

Wed 3/19

10:25 pm-5:44 pm

1 stop21h 19m

$1,024

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 2/18

11:15 am-4:00 pm

2 stops25h 45m

Buenos Aires Jorge Newbery

Tue 3/4

8:00 pm-10:10 am

2 stops17h 10m

$1,024

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Wed 3/12

10:10 am-6:00 am

2 stops17h 50m

Buenos Aires Ministro Pistarini

Tue 3/18

3:55 am-9:23 am

2 stops31h 28m

$1,029

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 2/23

9:30 pm-9:20 am

1 stop32h 50m

Buenos Aires Ministro Pistarini

Mon 3/10

9:05 pm-10:09 am

1 stop15h 04m

$1,034

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 35 results
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Compare providers for flights from Chicago to Buenos Aires

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 Chicago to Buenos Aires in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 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 Chicago-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Buenos Aires 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 Chicago-Buenos Aires 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 Chicago to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Chicago 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.

Travel insights for flights from Chicago to Buenos Aires

Get recent, data-driven insights about flights from Chicago to Buenos Aires including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Chicago to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Buenos Aires. Price data was last updated on December 13, 2024.

The best time to book flights from Chicago to Buenos Aires is 63 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 to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Chicago to Buenos Aires (average of $795). Flying from Chicago to Buenos Aires in February is currently the most expensive (average of $1,114). 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 CHI to BUE?

Find hourly flight availability from Chicago 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 December 18, 2024.

One of the essential ways to save on airfare from Chicago to Buenos Aires is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 14% on airfare.

What is the cheapest day to fly from Chicago to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Buenos Aires. Price data was last updated on October 13, 2024.

Travelers seeking maximum savings on their Chicago to Buenos Aires flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

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.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated December 18, 2024.
To help decide which airline to fly from Chicago to Buenos Aires, see what other customers have to say about United Airlines, Copa Airlines and LATAM Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.7
Good
1,723 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,879 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,930 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,059 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Buenos Aires. 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 Chicago to Buenos Aires round-trip?

    Cheapflights users have booked flights from Chicago to Buenos Aires round-trip from $969. Other airlines that can offer you cheap pricing are Air Canada, from $995, and Delta, from $1,024. Users have found that Avianca is 17% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago to Buenos Aires one-way?

    $403 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on Air Canada and LATAM Airlines, with prices starting from $558 and $630, respectively.

  • What are the most popular routes from Chicago to Buenos Aires?

    The most popular route from Chicago to Buenos Aires is Chicago O'Hare Intl - Buenos Aires Ministro Pistarini. You may also consider Chicago O'Hare Intl - Buenos Aires Jorge Newbery or Chicago Midway - Buenos Aires Ministro Pistarini.

  • Can I find deals for flights from Chicago to Buenos Aires that include hotel bookings?

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

  • How can I find direct flights from Chicago to Buenos Aires?

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

  • Can I find deals for business class flights from Chicago to Buenos Aires?

    Yes. Cheapflights offers flight deals from Chicago 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 to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Chicago to Buenos Aires (average of $795). Flying from Chicago to Buenos Aires in February is currently the most expensive (average of $1,114). 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

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Top 6 airlines flying from Chicago to Buenos Aires

Discover the top 6 airlines that operate flights from Chicago to Buenos Aires. 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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$762Average$1,379FlexibilityNo cancel feeOn-time71%
DeltaCheapest$778Average$1,160FlexibilityNo cancel feeOn-timeN/A
AeromexicoCheapest$779Average$1,098FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$963Average$1,146FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$1,023Average$1,263FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,060Average$1,337FlexibilityNo cancel feeOn-time69%
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