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$372+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This eDestinos deal was found by Cheapflights users on 1/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/253:45 pm
AEP
-
ORD
3 stops34h 02m
Multiple Airlines
Sun 5/103:52 pm
ORD
-
AEP
3 stops57h 48m
Multiple Airlines
Deal found 1/26$680
This eDestinos deal was found by Cheapflights users on 1/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:00 am
EZE
-
ORD
2 stops20h 59m
Multiple Airlines
Sun 5/103:52 pm
ORD
-
EZE
3 stops34h 08m
Multiple Airlines
Deal found 1/26$702
This eDestinos deal was found by Cheapflights users on 1/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:30 am
EZE
-
ORD
3 stops38h 17m
Multiple Airlines
Sat 5/93:52 pm
ORD
-
EZE
3 stops58h 08m
Multiple Airlines
Deal found 1/28$709
This eDestinos deal was found by Cheapflights users on 1/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/253:45 pm
AEP
-
ORD
3 stops34h 02m
Multiple Airlines
Sat 5/93:52 pm
ORD
-
AEP
3 stops41h 08m
Multiple Airlines
Deal found 1/28$709
This eDestinos deal was found by Cheapflights users on 1/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:30 am
EZE
-
ORD
3 stops38h 17m
Multiple Airlines
Sat 5/23:52 pm
ORD
-
EZE
3 stops58h 08m
Multiple Airlines
Deal found 1/28$742
This eDestinos deal was found by Cheapflights users on 1/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:40 am
AEP
-
ORD
3 stops41h 07m
Multiple Airlines
Sat 5/23:52 pm
ORD
-
AEP
2 stops38h 38m
Multiple Airlines
Deal found 1/27$764
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/1711:20 am
EZE
-
ORD
1 stop14h 20m
Multiple Airlines
Tue 5/195:32 pm
ORD
-
EZE
2 stops57h 33m
Multiple Airlines
Deal found 1/27$765
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/1711:20 am
EZE
-
ORD
1 stop14h 20m
Multiple Airlines
Mon 3/234:51 pm
ORD
-
EZE
2 stops33h 15m
Multiple Airlines
Deal found 1/27$768
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/245:35 am
EZE
-
ORD
2 stops28h 50m
Multiple Airlines
Mon 4/134:30 am
ORD
-
EZE
1 stop17h 35m
Multiple Airlines
Deal found 1/27$770
This eDestinos deal was found by Cheapflights users on 1/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:45 pm
AEP
-
ORD
3 stops34h 02m
Multiple Airlines
Wed 5/64:28 pm
ORD
-
AEP
3 stops38h 02m
Multiple Airlines
Deal found 1/28$771
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/245:35 am
EZE
-
ORD
2 stops28h 50m
Multiple Airlines
Tue 4/1410:55 am
ORD
-
EZE
1 stop15h 35m
Multiple Airlines
Deal found 1/27$776
This Booking.com deal was found by Cheapflights users on 1/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:15 pm
EZE
-
ORD
1 stop26h 55m
Arajet
Sat 9/1211:27 am
ORD
-
EZE
1 stop14h 18m
Arajet
Deal found 1/27$782

Find 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 January 29, 2026.

Round-trip from

$680
(eDestinos)

One-way from

$372
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,154
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. 7% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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

Sat 4/25

3:45 pm-11:47 pm

3 stops34h 02m

Chicago O'Hare Intl

Sun 5/10

3:52 pm-3:40 am

3 stops57h 48m

$680

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 4/25

5:36 am-11:47 pm

3 stops44h 11m

Chicago O'Hare Intl

Sat 5/9

3:52 pm-5:00 am

2 stops35h 08m

$726

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sat 4/25

3:45 pm-11:47 pm

3 stops34h 02m

Chicago O'Hare Intl

Sat 5/9

3:52 pm-11:00 am

3 stops41h 08m

$732

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Mon 4/13

8:40 am-11:47 pm

3 stops41h 07m

Chicago O'Hare Intl

Sat 5/2

3:52 pm-8:30 am

2 stops38h 38m

$764

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 3/17

11:20 am-11:40 pm

1 stop14h 20m

Chicago O'Hare Intl

Tue 5/19

5:32 pm-5:05 am

2 stops57h 33m

$765

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 3/17

11:20 am-11:40 pm

1 stop14h 20m

Chicago O'Hare Intl

Mon 3/23

6:45 am-12:05 am

1 stop15h 20m

$815

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 3/23

6:00 am-8:25 am

2 stops28h 25m

Chicago O'Hare Intl

Sat 4/11

11:27 am-3:45 am

1 stop14h 18m

$849

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Thu 3/26

2:30 pm-9:20 pm

3 stops32h 50m

Chicago O'Hare Intl

Tue 3/31

10:55 am-11:20 am

3 stops22h 25m

$853

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 3/23

4:45 pm-11:18 am

2 stops20h 33m

Chicago O'Hare Intl

Fri 4/10

3:45 pm-2:30 pm

2 stops20h 45m

$860

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Wed 3/11

4:55 pm-6:35 pm

3 stops27h 40m

Chicago O'Hare Intl

Sat 3/28

6:16 pm-5:45 am

2 stops33h 29m

$885

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 59 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 April is currently the most expensive (average of $1,205). 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.

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 January 29, 2026.
Read reviews from past customers who have flown Delta, Copa Airlines, and American 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
8,127 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,127 reviews
Delta
7.9
Good
8,127 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.5
Good
1,560 reviews
Delta
7.9
Good
8,127 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,206 reviews
Delta
7.9
Good
8,127 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Avianca
6.6
Okay
2,492 reviews
Delta
7.9
Good
8,127 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 $815, Arajet can have you in Illinois from Buenos Aires in 14h 20m. Airlines will cover a distance of 5619 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 April is currently the most expensive (average of $1,205). 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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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$578Average$1,084FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$694Average$1,270FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$750Average$1,186FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$777Average$1,347FlexibilityNo cancel feeOn-time69%
DeltaCheapest$884Average$1,085FlexibilityNo cancel feeOn-timeN/A

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