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$454+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — ORD
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
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 June 16, 2025.

Round-trip from

$917
(Booking.com)

One-way from

$454
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$1,161
From Buenos Aires (BUE) to Illinois
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One-way flight from Buenos Aires (BUE) to Illinois
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($83 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 June 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 June 16, 2025.

This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/312:30 amEZE - ORD
2 stops39h 35mAvianca
Sat 8/302:35 pmORD - EZE
2 stops36h 15mAvianca
Deal found 6/16$917
This Mytrip deal was found by Cheapflights users on 6/16. 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.
Mon 9/12:32 pmEZE - ORD
3 stops33h 19mMultiple Airlines
Tue 9/305:05 amORD - EZE
2 stops20h 40mMultiple Airlines
Deal found 6/16$924
This Mytrip deal was found by Cheapflights users on 6/14. 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 7/19:00 amAEP - ORD
3 stops37h 23mMultiple Airlines
Tue 7/87:56 amORD - AEP
3 stops31h 24mMultiple Airlines
Deal found 6/14$973
This American Airlines deal was found by Cheapflights users on 6/14. 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 8/2210:30 pmEZE - STL
2 stops22h 00mAmerican Airlines
Sun 9/79:44 amSTL - EZE
2 stops19h 51mAmerican Airlines
Deal found 6/14$1,010
This American Airlines deal was found by Cheapflights users on 6/15. 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 9/168:30 pmEZE - ORD
1 stop14h 15mAmerican Airlines
Wed 10/226:00 amORD - EZE
1 stop23h 35mAmerican Airlines
Deal found 6/15$1,016
This Priceline deal was found by Cheapflights users on 6/14. 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.
Thu 6/267:00 amAEP - ORD
3 stops33h 25mAvianca
Thu 7/105:25 pmORD - AEP
2 stops34h 15mAvianca
Deal found 6/14$1,020
This Delta deal was found by Cheapflights users on 6/14. 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.
Fri 8/228:10 pmEZE - STL
1 stop14h 44mDelta
Sun 9/75:11 pmSTL - EZE
1 stop14h 34mDelta
Deal found 6/14$1,055
This LATAM Airlines deal was found by Cheapflights users on 6/15. 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.
Thu 8/213:55 amEZE - STL
2 stops21h 19mLATAM Airlines
Sun 9/75:11 pmSTL - EZE
2 stops16h 36mLATAM Airlines
Deal found 6/15$1,064
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:10 pmEZE - MDW
1 stop17h 45mDelta
Wed 10/225:25 pmMDW - EZE
1 stop14h 20mDelta
Deal found 6/16$1,077
This Delta deal was found by Cheapflights users on 6/16. 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 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 24mDelta
Wed 10/2210:35 amORD - EZE
2 stops21h 10mDelta
Deal found 6/16$1,077
This LATAM Airlines deal was found by Cheapflights users on 6/14. 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.
Mon 9/153:55 amEZE - MDW
2 stops31h 56mLATAM Airlines
Wed 10/2210:35 amMDW - EZE
2 stops17h 20mLATAM Airlines
Deal found 6/14$1,084
This LATAM Airlines deal was found by Cheapflights users on 6/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/153:55 amEZE - ORD
2 stops21h 58mLATAM Airlines
Wed 10/221:30 pmORD - EZE
2 stops20h 17mLATAM Airlines
Deal found 6/16$1,085

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 June 16, 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

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 7/31

2:30 am-4:05 pm

2 stops39h 35m

Chicago O'Hare Intl

Sat 8/30

2:35 pm-4:50 am

2 stops36h 15m

$917

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 9/1

2:32 pm-9:51 pm

3 stops33h 19m

Chicago O'Hare Intl

Tue 9/30

5:05 am-3:45 am

2 stops20h 40m

$924

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Tue 7/1

9:00 am-8:23 pm

3 stops37h 23m

Chicago O'Hare Intl

Tue 7/8

7:56 am-5:20 pm

3 stops31h 24m

$973

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Fri 8/22

10:30 pm-6:30 pm

2 stops22h 00m

Lambert-St Louis

Sun 9/7

9:44 am-7:35 am

2 stops19h 51m

$1,010

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/16

8:30 pm-8:45 am

1 stop14h 15m

Chicago O'Hare Intl

Wed 10/22

6:00 am-7:35 am

1 stop23h 35m

$1,016

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Thu 6/26

7:00 am-2:25 pm

3 stops33h 25m

Chicago O'Hare Intl

Thu 7/10

5:25 pm-5:40 am

2 stops34h 15m

$1,020

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Fri 8/22

8:10 pm-8:54 am

1 stop14h 44m

Lambert-St Louis

Sun 9/7

5:11 pm-9:45 am

1 stop14h 34m

$1,055

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 8/21

3:55 am-11:14 pm

2 stops21h 19m

Lambert-St Louis

Sun 9/7

5:11 pm-11:47 am

2 stops16h 36m

$1,064

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Tue 9/16

8:10 pm-4:23 pm

1 stop22h 13m

Chicago Midway

Wed 10/22

10:35 am-9:45 am

1 stop21h 10m

$1,077

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/16

8:10 pm-4:34 pm

2 stops22h 24m

Chicago O'Hare Intl

Wed 10/22

10:35 am-9:45 am

2 stops21h 10m

$1,077

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 39 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 June 16, 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 16, 2025.
See what other customers who have flown with Delta, LATAM Airlines and Copa Airlines from Buenos Aires to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,785 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,453 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aeromexico
7.5
Good
1,711 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Avianca. According to our data, you can fly for as low as $484. Users have also found prices from $709 and $757 on Air Canada and American Airlines, 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 Ministro Pistarini - Chicago Midway and Buenos Aires Jorge Newbery - Chicago O'Hare Intl.

  • 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.
Ministro Pistarini to Miami flights
Ministro Pistarini to John F Kennedy Intl flights
Jorge Newbery to Miami flights
Ministro Pistarini to Newark flights
Jorge Newbery to John F Kennedy Intl flights
Ministro Pistarini to Fort Lauderdale flights
Ministro Pistarini to Los Angeles flights
Cordoba to Miami flights
Ministro Pistarini to Orlando flights
Jorge Newbery to Los Angeles flights
Ministro Pistarini to Dallas/Fort Worth flights
Jorge Newbery to Orlando flights
Ministro Pistarini to Dulles Intl flights
Ministro Pistarini to Seattle flights
Ministro Pistarini to Atlanta flights
Ministro Pistarini to Reagan-National flights
Ministro Pistarini to O'Hare Intl flights
Ministro Pistarini to San Francisco flights
Mendoza to Miami flights
Cordoba to John F Kennedy Intl flights
Ministro Pistarini to Ontario flights
Cordoba to Fort Lauderdale flights
Ministro Pistarini to Las Vegas flights
Jorge Newbery to San Francisco flights
Ministro Pistarini to Baltimore flights
Ministro Pistarini to Honolulu flights
Ministro Pistarini to Austin flights
Rosario to Miami flights
Ministro Pistarini to Denver flights
Ministro Pistarini to Hobby flights
Jorge Newbery to Seattle flights
Jorge Newbery to Denver flights
Mendoza to John F Kennedy Intl flights
Jorge Newbery to Dulles Intl flights
Ministro Pistarini to Boston flights
Cordoba to Newark flights
Ministro Pistarini to George Bush Intcntl flights

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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$882Average$1,236FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$928Average$1,270FlexibilityNo cancel feeOn-time71%
DeltaCheapest$969Average$1,241FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$1,018Average$1,174FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$1,084Average$1,554FlexibilityNo cancel feeOn-time69%

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