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$421+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$849
(Mytrip)

One-way from

$421
(Orbitz)

Popular in

July

Cheapest in

October

Average price

$1,604
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. 5% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 10/78:10 pmAEP - ORD
3 stops29h 35mMultiple Airlines
Tue 10/215:05 amORD - AEP
3 stops31h 35mMultiple Airlines
Deal found 7/29$849
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:50 amEZE - ORD
2 stops28h 28mMultiple Airlines
Fri 9/1910:27 amORD - EZE
2 stops26h 53mMultiple Airlines
Deal found 7/28$868
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:15 pmEZE - STL
2 stops20h 26mAmerican Airlines
Tue 12/21:52 pmSTL - EZE
2 stops17h 23mAmerican Airlines
Deal found 7/31$930
This Priceline deal was found by Cheapflights users on 7/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/31:40 amEZE - ORD
1 stop13h 35mAvianca
Mon 8/112:35 pmORD - EZE
2 stops35h 50mAvianca
Deal found 7/28$938
This Delta deal was found by Cheapflights users on 7/29. 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.
Sun 9/78:10 pmEZE - MDW
1 stop15h 41mDelta
Mon 9/226:30 pmMDW - EZE
2 stops33h 25mDelta
Deal found 7/29$959
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:10 pmEZE - ORD
2 stops22h 10mDelta
Wed 10/221:25 pmORD - EZE
2 stops18h 20mDelta
Deal found 7/30$965
This LATAM Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/23:55 amEZE - MDW
2 stops31h 41mLATAM Airlines
Wed 10/810:35 amMDW - EZE
2 stops17h 35mLATAM Airlines
Deal found 7/30$967
This LATAM Airlines deal was found by Cheapflights users on 7/30. 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.
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
This LATAM Airlines deal was found by Cheapflights users on 7/30. 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 9/35:05 pmAEP - ORD
2 stops28h 04mLATAM Airlines
Wed 10/81:26 pmORD - AEP
2 stops24h 39mLATAM Airlines
Deal found 7/30$967
This KAYAK deal was found by Cheapflights users on 7/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:55 amEZE - STL
2 stops30h 10mLATAM Airlines
Tue 12/21:30 pmSTL - EZE
2 stops34h 20mLATAM Airlines
Deal found 7/31$1,074
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/87:00 amAEP - ORD
1 stop32h 15mAvianca
Sun 8/173:45 pmORD - AEP
2 stops35h 55mAvianca
Deal found 7/28$1,116

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 July 31, 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

Tue 10/7

8:10 pm-11:45 pm

3 stops29h 35m

Chicago O'Hare Intl

Tue 10/21

5:05 am-2:40 pm

3 stops31h 35m

$849

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 9/12

6:50 am-9:18 am

2 stops28h 28m

Chicago O'Hare Intl

Fri 9/19

10:27 am-3:20 pm

2 stops26h 53m

$868

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 AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 10/21

10:30 pm-6:36 pm

2 stops22h 06m

Lambert-St Louis

Tue 12/2

11:39 am-8:15 am

1 stop17h 36m

$930

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 - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Sun 9/7

8:10 pm-6:37 pm

2 stops24h 27m

Chicago Midway

Mon 9/22

6:30 pm-5:55 am

2 stops33h 25m

$959

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/16

8:10 pm-4:20 pm

2 stops22h 10m

Chicago O'Hare Intl

Wed 10/22

1:25 pm-9:45 am

2 stops18h 20m

$965

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Tue 9/2

3:55 am-9:36 am

2 stops31h 41m

Chicago Midway

Wed 10/8

10:35 am-6:10 am

2 stops17h 35m

$967

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 34 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, August is the cheapest month in which you can book a flight from Buenos Aires to Illinois (average of $245). Flying from Buenos Aires to Illinois 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 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 July 31, 2025.

When flying from Buenos Aires to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 31, 2025.
Read reviews from past customers who have flown Delta, LATAM Airlines, and Copa Airlines from Buenos Aires to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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.
LATAM Airlines
7.5
Good
1,822 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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.
Copa Airlines
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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.
GOL
7.3
Good
1,091 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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.

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.

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

    For one-way options, check prices for Arajet. According to our data, you can fly for as low as $421. Users have also found prices from $506 and $589 on Avianca and WorldTicket, respectively.

  • 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, August is the cheapest month in which you can book a flight from Buenos Aires to Illinois (average of $245). Flying from Buenos Aires to Illinois 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.

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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$882Average$1,141FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$928Average$1,272FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$962Average$1,217FlexibilityNo cancel feeOn-time70%
DeltaCheapest$969Average$1,396FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,084Average$1,385FlexibilityNo cancel feeOn-time69%

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