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$369+ Cheap flights from Buenos Aires (BUE) to Illinois

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find flight deals from Buenos Aires to Illinois

Cheapest flights from Buenos Aires to Illinois
Explore the most affordable flight options available from Buenos Aires to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/37:30 amEZE - ORD
2 stops31h 53mMultiple Airlines
Wed 12/107:41 pmORD - EZE
1 stop34h 54mMultiple Airlines
Deal found 11/2$749
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:40 amEZE - ORD
1 stop15h 30mArajet
Mon 12/295:45 amORD - EZE
1 stop15h 20mArajet
Deal found 11/1$751
This Mytrip deal was found by Cheapflights users on 11/2. 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.
Wed 12/39:50 amAEP - ORD
3 stops35h 46mMultiple Airlines
Wed 12/107:41 pmORD - AEP
2 stops32h 49mMultiple Airlines
Deal found 11/2$755
This Mytrip deal was found by Cheapflights users on 11/1. 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 12/17:30 amEZE - ORD
3 stops42h 43mMultiple Airlines
Mon 12/810:20 pmORD - EZE
1 stop14h 30mMultiple Airlines
Deal found 11/1$775
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/192:40 amEZE - ORD
2 stops23h 33mMultiple Airlines
Sun 11/306:45 amORD - EZE
1 stop18h 00mMultiple Airlines
Deal found 11/1$784
This Mytrip deal was found by Cheapflights users on 10/31. 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.
Wed 11/124:55 pmEZE - ORD
3 stops33h 11mMultiple Airlines
Tue 1/66:05 pmORD - EZE
3 stops30h 35mMultiple Airlines
Deal found 10/31$785
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/1411:00 amEZE - ORD
2 stops33h 27mMultiple Airlines
Mon 12/295:45 amORD - EZE
1 stop15h 20mMultiple Airlines
Deal found 11/1$804
This Mytrip deal was found by Cheapflights users on 11/1. 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 12/14:20 pmAEP - ORD
2 stops31h 00mMultiple Airlines
Mon 12/87:41 pmORD - AEP
3 stops30h 59mMultiple Airlines
Deal found 11/1$866
This Delta deal was found by Cheapflights users on 10/31. 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 11/1810:25 pmEZE - STL
2 stops21h 44mDelta
Tue 11/255:17 pmSTL - EZE
1 stop12h 43mDelta
Deal found 10/31$867
This LATAM Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 12/178:00 amEZE - STL
2 stops16h 57mLATAM Airlines
Mon 12/293:17 pmSTL - EZE
2 stops15h 18mLATAM Airlines
Deal found 10/30$878
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Tue 11/1811:55 pmEZE - STL
2 stops17h 29mUnited Airlines
Tue 11/258:00 amSTL - EZE
2 stops20h 20mUnited Airlines
Deal found 10/31$881
This Mytrip deal was found by Cheapflights users on 10/30. 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 12/21:40 pmAEP - ORD
2 stops33h 40mMultiple Airlines
Thu 1/85:05 amORD - AEP
2 stops23h 25mMultiple Airlines
Deal found 10/30$897

Cheap flight deals from Buenos Aires to Illinois

Keep the following information in mind while searching for Buenos Aires to Illinois flight deals. Data was last updated November 2, 2025.

Round-trip from

$751
(Expedia)

One-way from

$369
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,053
From Buenos Aires (BUE) to Illinois
Search Deals
One-way flight from Buenos Aires (BUE) to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Illinois 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 November 2, 2025.
Use the filters below to find and compare flights from Buenos Aires to Illinois that are best for you.

Fly from

Buenos Aires

Fly to

Illinois

Route

Depart

Return

Price

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Wed 12/3

9:50 am-6:36 pm

3 stops35h 46m

Chicago O'Hare Intl

Wed 12/10

7:41 pm-3:40 am

3 stops28h 59m

$758

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 4/22

4:35 pm-10:08 am

2 stops19h 33m

Chicago O'Hare Intl

Mon 4/27

8:20 pm-2:30 pm

2 stops40h 10m

$837

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 3/20

4:45 pm-8:00 am

3 stops41h 15m

Chicago O'Hare Intl

Sun 4/19

8:40 am-2:30 pm

3 stops27h 50m

$859

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 12/3

7:30 am-8:20 pm

1 stop15h 50m

Chicago O'Hare Intl

Wed 12/10

7:41 pm-7:00 am

3 stops32h 19m

$862

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Mon 12/1

4:20 pm-8:20 pm

2 stops31h 00m

Chicago O'Hare Intl

Mon 12/8

7:41 pm-5:40 am

3 stops30h 59m

$866

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Wed 12/17

11:55 pm-4:06 pm

1 stop19h 11m

Lambert-St Louis

Mon 12/29

3:17 pm-9:00 am

1 stop14h 43m

$867

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 11/18

8:55 pm-10:43 am

1 stop16h 48m

Lambert-St Louis

Tue 11/25

9:33 am-9:00 am

1 stop20h 27m

$867

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Mon 12/1

11:55 pm-6:33 pm

1 stop21h 38m

Lambert-St Louis

Wed 12/10

2:02 pm-9:00 am

1 stop15h 58m

$867

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 12/2

10:45 pm-10:35 am

1 stop14h 50m

Chicago O'Hare Intl

Thu 1/8

1:35 pm-11:35 am

1 stop19h 00m

$874

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 11/18

11:55 pm-2:24 pm

2 stops17h 29m

Lambert-St Louis

Tue 11/25

8:00 am-7:20 am

2 stops20h 20m

$881

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 60 results
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Best time to book a flight from Buenos Aires to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois

What is the cheapest month to book a flight from Buenos Aires to Illinois?

Currently, January is the cheapest month in which you can book a flight from Buenos Aires to Illinois (average of $514). Flying from Buenos Aires to Illinois in February is currently the most expensive (average of $1,224). 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 IL?

Find hourly flight availability from Buenos Aires to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

One of the essential ways to save on airfare from Buenos Aires to Illinois is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 27% on airfare.

How much does it cost to fly round-trip from Buenos Aires to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 2, 2025.
Read reviews from past customers who have flown Delta, Copa Airlines, and United Airlines from Buenos Aires to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,997 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
7,997 reviews
Delta
7.9
Good
7,997 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Copa Airlines
7.6
Good
1,561 reviews
Delta
7.9
Good
7,997 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
United Airlines
7.4
Good
8,993 reviews
Delta
7.9
Good
7,997 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
American Airlines
7.2
Good
11,033 reviews
Delta
7.9
Good
7,997 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Avianca
6.6
Okay
2,469 reviews
Delta
7.9
Good
7,997 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

Related info for your journey

Find useful and relevant information for your journey from Buenos Aires to Illinois. 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 Illinois?

    For as low as $867, Air Canada can have you in Illinois from Buenos Aires in 19h 11m. Airlines will cover a distance of 5472 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular flight routes from Buenos Aires to Illinois are Buenos Aires Ministro Pistarini - Chicago O'Hare Intl, Buenos Aires Jorge Newbery - Chicago O'Hare Intl and Buenos Aires Ministro Pistarini - Chicago Midway.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Buenos Aires to Illinois (average of $514). Flying from Buenos Aires to Illinois in February is currently the most expensive (average of $1,224). 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

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Alternative routes for Buenos Aires to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Buenos Aires to Illinois

Discover the top 5 airlines that operate flights from Buenos Aires to Illinois. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$578Average$1,140FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$694Average$1,274FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$750Average$1,174FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$777Average$1,385FlexibilityNo cancel feeOn-time69%
DeltaCheapest$884Average$1,124FlexibilityNo cancel feeOn-timeN/A

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