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$347+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUE
Nov 17 — Nov 241
Sun 11/17
Sun 11/24
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 November 12, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

December

Cheapest in

May

Round-trip from

$749
(Avianca)

One-way from

$347
(Kiwi.com)
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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High demand for flights, 27% potential price rise
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Best time to find cheap flights, 14% potential price drop
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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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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 November 12, 2024.

This Mytrip deal was found by Cheapflights users on 11/11. 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 12/38:32 amORD - EZE
2 stops28h 13mMultiple Airlines
Tue 12/108:00 amEZE - ORD
3 stops38h 07mMultiple Airlines
Deal found 11/11$953
This Mytrip deal was found by Cheapflights users on 11/10. 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.
Sun 12/19:50 amORD - AEP
3 stops35h 11mMultiple Airlines
Sun 12/85:58 pmAEP - ORD
2 stops32h 47mMultiple Airlines
Deal found 11/10$976
This Avianca deal was found by Cheapflights users on 11/11. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/261:35 pmORD - EZE
1 stop14h 25mAvianca
Mon 12/21:45 amEZE - ORD
1 stop13h 30mAvianca
Deal found 11/11$994
This Copa Airlines deal was found by Cheapflights users on 11/11. 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.
Sun 11/176:54 amORD - EZE
1 stop18h 19mCopa Airlines
Sun 11/2410:39 amEZE - ORD
1 stop15h 42mCopa Airlines
Deal found 11/11$1,062
This Bravofly deal was found by Cheapflights users on 11/11. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/33:41 pmORD - EZE
2 stops23h 29mLATAM Airlines
Tue 12/107:10 pmEZE - ORD
2 stops21h 09mLATAM Airlines
Deal found 11/11$1,078
This Delta deal was found by Cheapflights users on 11/11. 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 11/1412:43 pmMDW - EZE
1 stop17h 17mDelta
Wed 11/279:00 pmEZE - MDW
1 stop15h 32mDelta
Deal found 11/11$1,080
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Tue 12/31:55 pmORD - EZE
2 stops16h 05mAmerican Airlines
Tue 12/1011:05 pmEZE - ORD
1 stop20h 04mAmerican Airlines
Deal found 11/11$1,080
This Flysmarter deal was found by Cheapflights users on 11/11. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/33:50 pmORD - EZE
1 stop14h 30mLufthansa
Tue 12/1010:05 pmEZE - ORD
1 stop21h 56mLufthansa
Deal found 11/11$1,086
This Delta deal was found by Cheapflights users on 11/12. 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.
Tue 12/310:45 amORD - EZE
1 stop20h 00mDelta
Tue 12/1010:25 pmEZE - ORD
1 stop21h 41mDelta
Deal found 11/12$1,094
This LATAM Airlines deal was found by Cheapflights users on 11/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/310:45 amORD - AEP
2 stops24h 55mLATAM Airlines
Tue 12/103:40 pmAEP - ORD
2 stops24h 39mLATAM Airlines
Deal found 11/12$1,094
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sun 11/249:26 pmORD - EZE
1 stop32h 54mUnited Airlines
Tue 12/1711:55 pmEZE - ORD
1 stop17h 52mUnited Airlines
Deal found 11/11$1,104
This Justfly.com deal was found by Cheapflights users on 11/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/13:19 pmMDW - EZE
2 stops23h 51mLATAM Airlines
Wed 12/185:36 amEZE - MDW
2 stops19h 30mLATAM Airlines
Deal found 11/10$1,124

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 2,728,912 searches. Data last updated November 12, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 3/2

1:35 pm-4:40 am

2 stops36h 05m

Buenos Aires Ministro Pistarini

Sat 3/8

7:10 am-12:15 pm

1 stop32h 05m

$952

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 12/3

8:32 am-3:45 pm

2 stops28h 13m

Buenos Aires Ministro Pistarini

Tue 12/10

8:00 am-7:07 pm

3 stops38h 07m

$953

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 3/12

2:35 pm-8:10 pm

2 stops27h 35m

Buenos Aires Jorge Newbery

Wed 3/26

4:30 pm-1:15 pm

1 stop22h 45m

$961

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 5/2

3:40 pm-2:50 pm

2 stops21h 10m

Buenos Aires Ministro Pistarini

Thu 5/29

4:25 pm-9:51 am

2 stops19h 26m

$984

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 3/18

7:55 am-4:16 am

1 stop18h 21m

Buenos Aires Ministro Pistarini

Tue 3/25

2:43 pm-1:11 pm

1 stop24h 28m

$1,012

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Tue 2/25

5:00 pm-9:00 am

1 stop13h 00m

Buenos Aires Ministro Pistarini

Mon 3/17

8:55 pm-4:04 pm

1 stop21h 09m

$1,024

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Tue 2/4

5:07 pm-6:30 pm

2 stops22h 23m

Buenos Aires Jorge Newbery

Tue 3/4

3:40 pm-9:23 am

2 stops20h 43m

$1,024

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 2/4

8:00 am-9:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Wed 3/5

10:25 pm-8:58 pm

1 stop25h 33m

$1,024

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 2/4

5:15 pm-6:30 pm

2 stops22h 15m

Buenos Aires Jorge Newbery

Wed 3/5

3:40 pm-10:16 am

2 stops21h 36m

$1,024

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 2/9

9:05 pm-9:20 am

1 stop33h 15m

Buenos Aires Ministro Pistarini

Thu 4/3

9:00 pm-9:25 am

1 stop14h 25m

$1,034

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 38 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 November.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Buenos Aires flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 November 8, 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 $1,156). 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 November 12, 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 13% 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 Sunday evenings when fares are most often at their lowest. Monday mornings 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 November 12, 2024.
To help decide which airline to fly from Chicago to Buenos Aires, see what other customers have to say about Avianca, Air Canada and Copa 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
8,799 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
8,799 reviews
Delta
8.0
Very good
8,799 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
7.8
Good
1,817 reviews
Delta
8.0
Very good
8,799 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
1,946 reviews
Delta
8.0
Very good
8,799 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
2,014 reviews
Delta
8.0
Very good
8,799 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
9,188 reviews
Delta
8.0
Very good
8,799 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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 $749. Other airlines that can offer you cheap pricing are Air Canada, from $859, and Copa Airlines, from $1,012. Users have found that Avianca is 36% cheaper than the other options available to this destination.

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

    $413 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 GOL, with prices starting from $563 and $650, 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 $1,156). 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 2,728,912 searches. Data last updated November 12, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$778Average$1,163FlexibilityNo cancel feeOn-timeN/A
AeromexicoCheapest$779Average$1,098FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$851Average$1,773FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$916Average$1,126FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$1,037Average$1,383FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,038Average$1,263FlexibilityNo cancel feeOn-time71%
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