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$313+ Cheap flights from Illinois 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUE
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Buenos Aires

Keep the following information in mind while searching for Illinois to Buenos Aires flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$853
(Priceline)

One-way from

$313
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,195
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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From Illinois to Buenos Aires (BUE)
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One-way flight from Illinois to Buenos Aires (BUE)
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Highest demand for flights based on searches. 9% potential increase in price ($122 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Illinois to Buenos Aires

Cheapest flights from Illinois to Buenos Aires
Explore the most affordable flight options available from Illinois to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Priceline deal was found by Cheapflights users on 2/20. 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.
Mon 4/212:35 pmORD - EZE
2 stops35h 50mAvianca
Wed 5/146:40 amEZE - ORD
2 stops32h 35mAvianca
Deal found 2/20$853
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sat 5/315:05 amORD - AEP
3 stops34h 15mMultiple Airlines
Mon 6/212:05 amAEP - ORD
3 stops46h 35mMultiple Airlines
Deal found 2/20$873
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/113:09 pmORD - EZE
1 stop14h 38mCopa Airlines
Sun 3/163:58 amEZE - ORD
1 stop35h 44mCopa Airlines
Deal found 2/19$893
This Mytrip deal was found by Cheapflights users on 2/20. 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 3/96:00 amORD - EZE
2 stops26h 00mMultiple Airlines
Sun 3/1612:00 pmEZE - ORD
2 stops28h 56mMultiple Airlines
Deal found 2/20$909
This Gotogate deal was found by Cheapflights users on 2/19. 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.
Wed 3/127:20 amORD - EZE
2 stops29h 05mAir Canada
Wed 3/194:00 pmEZE - ORD
2 stops29h 55mAir Canada
Deal found 2/19$925
This LATAM Airlines deal was found by Cheapflights users on 2/18. 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 5/2610:10 amMDW - EZE
2 stops30h 03mLATAM Airlines
Tue 6/1012:48 pmEZE - MDW
2 stops22h 30mLATAM Airlines
Deal found 2/18$1,025
This Delta deal was found by Cheapflights users on 2/19. 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 12/96:00 amORD - EZE
2 stops21h 15mDelta
Tue 12/163:45 amEZE - ORD
2 stops23h 10mDelta
Deal found 2/19$1,025
This LATAM Airlines deal was found by Cheapflights users on 2/19. 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 9/1511:00 amORD - AEP
2 stops25h 40mLATAM Airlines
Thu 10/23:40 pmAEP - ORD
2 stops23h 39mLATAM Airlines
Deal found 2/19$1,025
This Delta deal was found by Cheapflights users on 2/19. 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 11/183:30 pmSTL - EZE
1 stop14h 30mDelta
Wed 11/267:35 pmEZE - STL
2 stops19h 49mDelta
Deal found 2/19$1,025
This Delta deal was found by Cheapflights users on 2/19. 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.
Mon 5/266:50 pmMDW - EZE
1 stop12h 55mDelta
Tue 6/108:10 pmEZE - MDW
2 stops18h 20mDelta
Deal found 2/19$1,030
This United Airlines deal was found by Cheapflights users on 2/18. 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 11/1810:30 amSTL - EZE
2 stops19h 50mUnited Airlines
Wed 11/2610:05 pmEZE - STL
2 stops22h 09mUnited Airlines
Deal found 2/18$1,030
This LATAM Airlines deal was found by Cheapflights users on 2/18. 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 9/43:30 pmSTL - AEP
2 stops18h 30mLATAM Airlines
Fri 9/1210:50 pmAEP - STL
2 stops23h 57mLATAM Airlines
Deal found 2/18$1,065

Find flights from Illinois to Buenos Aires within your budget

Customize your flight search to find flights from Illinois 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 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Illinois

Fly to

Buenos Aires

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Mon 4/21

2:35 pm-4:25 am

2 stops35h 50m

Buenos Aires Ministro Pistarini

Wed 5/14

6:40 am-1:15 pm

2 stops32h 35m

$853

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 3/11

3:09 pm-7:47 am

1 stop14h 38m

Buenos Aires Ministro Pistarini

Sun 3/16

3:58 am-1:42 pm

1 stop35h 44m

$893

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 4/8

5:10 am-5:20 pm

3 stops34h 10m

Buenos Aires Jorge Newbery

Tue 4/15

7:55 am-2:26 pm

3 stops32h 31m

$900

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 3/9

6:00 am-10:00 am

2 stops26h 00m

Buenos Aires Ministro Pistarini

Sun 3/16

12:00 pm-2:56 pm

2 stops28h 56m

$909

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/12

7:20 am-2:25 pm

2 stops29h 05m

Buenos Aires Ministro Pistarini

Wed 3/19

4:00 pm-7:55 pm

2 stops29h 55m

$925

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Mon 5/26

10:10 am-6:13 pm

2 stops30h 03m

Buenos Aires Ministro Pistarini

Tue 6/10

12:48 pm-9:18 am

2 stops22h 30m

$1,025

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 4/21

10:42 am-6:10 am

2 stops41h 28m

Buenos Aires Ministro Pistarini

Mon 4/28

8:10 pm-11:45 am

1 stop17h 35m

$1,025

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 4/15

1:50 pm-11:48 am

2 stops19h 58m

Buenos Aires Ministro Pistarini

Thu 4/24

7:35 am-11:59 pm

2 stops18h 24m

$1,025

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 4/29

3:30 pm-4:00 pm

2 stops22h 30m

Buenos Aires Jorge Newbery

Mon 5/12

6:20 pm-12:09 pm

2 stops19h 49m

$1,025

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Mon 5/26

6:50 pm-9:45 am

1 stop12h 55m

Buenos Aires Ministro Pistarini

Tue 6/10

8:10 pm-12:30 pm

2 stops18h 20m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 48 results
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Best time to book a flight from Illinois to Buenos Aires

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

Get recent, data-driven insights about flights from Illinois to Buenos Aires including ideal travel times, pricing trends, and more.

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

Currently, April is the cheapest month in which you can book a flight from Illinois to Buenos Aires (average of $795). Flying from Illinois to Buenos Aires in December is currently the most expensive (average of $1,260). 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 IL to BUE?

Find hourly flight availability from Illinois 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 February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Buenos Aires as you normally would.

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 February 20, 2025.
Get a feel of what it's like to fly with Delta, Copa Airlines and LATAM Airlines from Illinois to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.6
Good
1,510 reviews
Delta
8.0
Very good
8,219 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,795 reviews
Delta
8.0
Very good
8,219 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,771 reviews
Delta
8.0
Very good
8,219 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Illinois 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 to fly from Illinois to Buenos Aires one-way?

    To fly one-way, consider booking your trip with Avianca, which is currently one of the cheapest options available, starting at $372. Air Canada flights start at $561 while deals on Delta start at $718 one-way.

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

    When deciding which route to take from Illinois to Buenos Aires consider Chicago O'Hare Intl - Buenos Aires Ministro Pistarini, Chicago O'Hare Intl - Buenos Aires Jorge Newbery or Chicago Midway - Buenos Aires Ministro Pistarini as they are the most popular.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Illinois to Buenos Aires (average of $795). Flying from Illinois to Buenos Aires in December is currently the most expensive (average of $1,260). 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 Illinois to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Ministro Pistarini flights
John F Kennedy Intl to Ministro Pistarini flights
Miami to Jorge Newbery flights
John F Kennedy Intl to Jorge Newbery flights
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Top 5 airlines flying from Illinois to Buenos Aires

Discover the top 5 airlines that operate flights from Illinois 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 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$762Average$1,666FlexibilityNo cancel feeOn-time71%
DeltaCheapest$778Average$1,166FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$957Average$1,106FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$1,013Average$1,267FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,060Average$1,263FlexibilityNo cancel feeOn-time69%
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