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Buenos Aires

$299+ 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
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$945
(Mytrip)

One-way from

$299
(Priceline)

Popular in

December

Cheapest in

September

Average price

$1,181
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 ($119 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 April 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 April 2, 2025.

This Travelocity deal was found by Cheapflights users on 3/31. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/102:35 pmORD - EZE
1 stop31h 35mAvianca
Mon 4/141:40 amEZE - ORD
1 stop13h 35mAvianca
Deal found 3/31$946
This Mytrip deal was found by Cheapflights users on 4/1. 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.
Tue 5/277:47 amORD - AEP
3 stops35h 13mMultiple Airlines
Sat 5/313:40 amAEP - ORD
3 stops31h 10mMultiple Airlines
Deal found 4/1$948
This Air Canada deal was found by Cheapflights users on 4/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1310:40 amORD - EZE
3 stops25h 50mAir Canada
Mon 5/194:35 pmEZE - ORD
2 stops22h 20mAir Canada
Deal found 4/1$950
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Thu 5/154:35 pmORD - EZE
3 stops27h 05mMultiple Airlines
Wed 5/212:30 amEZE - ORD
2 stops23h 35mMultiple Airlines
Deal found 3/31$952
This Copa Airlines deal was found by Cheapflights users on 3/31. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/267:54 amORD - EZE
1 stop18h 15mCopa Airlines
Sun 6/12:32 pmEZE - ORD
1 stop25h 15mCopa Airlines
Deal found 3/31$1,013
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2710:25 amMDW - EZE
2 stops17h 45mDelta
Tue 8/58:10 pmEZE - MDW
1 stop20h 46mDelta
Deal found 4/1$1,025
This United Airlines deal was found by Cheapflights users on 3/31. 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 11/42:15 pmORD - EZE
1 stop16h 05mUnited Airlines
Wed 1/2811:55 pmEZE - ORD
1 stop14h 32mUnited Airlines
Deal found 3/31$1,025
This LATAM Airlines deal was found by Cheapflights users on 4/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/276:00 amMDW - AEP
2 stops20h 05mLATAM Airlines
Tue 8/53:40 pmAEP - MDW
2 stops20h 11mLATAM Airlines
Deal found 4/1$1,025
This LATAM Airlines deal was found by Cheapflights users on 4/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/265:58 pmORD - AEP
2 stops23h 42mLATAM Airlines
Mon 6/26:00 amAEP - ORD
2 stops30h 03mLATAM Airlines
Deal found 4/1$1,025
This Delta deal was found by Cheapflights users on 3/30. 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.
Mon 8/1110:35 amORD - EZE
2 stops21h 10mDelta
Mon 8/1810:10 pmEZE - ORD
2 stops16h 28mDelta
Deal found 3/30$1,030
This LATAM Airlines deal was found by Cheapflights users on 4/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/266:00 amMDW - EZE
2 stops21h 55mLATAM Airlines
Mon 6/93:55 amEZE - MDW
2 stops31h 59mLATAM Airlines
Deal found 4/1$1,034
This eDestinos deal was found by Cheapflights users on 4/1. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/13:53 pmORD - EZE
1 stop27h 32mAeromexico
Thu 5/811:25 pmEZE - ORD
1 stop26h 30mAeromexico
Deal found 4/1$1,047

Cheapflights Fare Finder

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 April 2, 2025.
Use the filters below to find and compare flights from Illinois to Buenos Aires that are best for you.

Fly from

Illinois

Fly to

Buenos Aires

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 5/12

2:35 pm-4:05 am

1 stop35h 30m

Buenos Aires Jorge Newbery

Mon 5/19

10:20 am-1:15 pm

2 stops28h 55m

$943

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 5/13

12:41 pm-2:30 pm

2 stops23h 49m

Buenos Aires Ministro Pistarini

Tue 5/20

6:20 am-11:04 pm

3 stops42h 44m

$945

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 5/14

2:35 pm-5:45 am

1 stop13h 10m

Buenos Aires Ministro Pistarini

Tue 5/20

1:40 am-1:15 pm

1 stop13h 35m

$946

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 5/13

10:40 am-2:30 pm

3 stops25h 50m

Buenos Aires Ministro Pistarini

Mon 5/19

4:35 pm-12:55 pm

2 stops22h 20m

$950

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 5/27

4:06 pm-9:25 pm

1 stop27h 19m

Buenos Aires Ministro Pistarini

Tue 6/3

11:25 pm-2:10 pm

1 stop16h 45m

$985

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 7/8

1:07 am-10:08 pm

1 stop19h 01m

Buenos Aires Ministro Pistarini

Thu 8/28

2:32 pm-1:42 pm

1 stop25h 10m

$1,013

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Tue 5/27

10:25 am-6:10 am

2 stops17h 45m

Buenos Aires Ministro Pistarini

Tue 8/5

8:10 pm-2:56 pm

1 stop20h 46m

$1,025

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Tue 5/27

6:00 am-4:05 am

2 stops20h 05m

Buenos Aires Jorge Newbery

Tue 8/5

3:40 pm-9:51 am

2 stops20h 11m

$1,025

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 5/27

3:57 pm-9:45 am

1 stop15h 48m

Buenos Aires Ministro Pistarini

Tue 6/3

8:10 pm-12:20 pm

1 stop18h 10m

$1,025

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 5/26

5:58 pm-7:40 pm

2 stops23h 42m

Buenos Aires Jorge Newbery

Mon 6/2

6:00 am-10:03 am

2 stops30h 03m

$1,025

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 45 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Buenos Aires

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 April 2, 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 April 2, 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
7,898 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
1,400 reviews
Delta
8.0
Very good
7,898 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
1,754 reviews
Delta
8.0
Very good
7,898 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
1,700 reviews
Delta
8.0
Very good
7,898 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
8,616 reviews
Delta
8.0
Very good
7,898 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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 $299. GOL flights start at $433 while deals on Air Canada start at $554 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
LaGuardia to Ministro Pistarini flights
John F Kennedy Intl to Jorge Newbery flights
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Los Angeles to Ministro Pistarini flights
Dulles Intl to Ministro Pistarini flights
O'Hare Intl to Ministro Pistarini flights
Hobby to Ministro Pistarini flights
Los Angeles to Jorge Newbery flights
Newark to Jorge Newbery flights
Reagan-National to Ministro Pistarini flights
George Bush Intcntl to Ministro Pistarini flights
Fort Lauderdale to Ministro Pistarini flights
San Francisco to Ministro Pistarini flights
Atlanta to Ministro Pistarini flights
Dallas/Fort Worth to Ministro Pistarini flights
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Orlando to Ministro Pistarini flights
Midway to Ministro Pistarini flights
Dulles Intl to Jorge Newbery flights
Austin to Ministro Pistarini flights
Boston to Ministro Pistarini flights
San Francisco to Jorge Newbery flights
Boston to Jorge Newbery flights
Dallas/Fort Worth to Jorge Newbery flights
Ontario to Ministro Pistarini flights
Austin to Jorge Newbery flights
Orlando to Jorge Newbery flights
Hobby to Jorge Newbery flights
Seattle to Ministro Pistarini flights
Fort Lauderdale to Jorge Newbery flights
Seattle to Jorge Newbery flights
Atlanta to Jorge Newbery flights
George Bush Intcntl to Jorge Newbery flights
West Palm Beach to Ministro Pistarini flights
Tampa to Ministro Pistarini flights
Love Field to Ministro Pistarini flights
Miami to Cordoba flights
Las Vegas to Ministro Pistarini flights
Salt Lake City to Ministro Pistarini flights
Denver to Ministro Pistarini flights
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Miami to Mendoza flights

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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$758Average$1,159FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$762Average$1,620FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$957Average$1,111FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$1,023Average$1,265FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,060Average$1,257FlexibilityNo cancel feeOn-time69%

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