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Argentina

$270+ Cheap flights from Illinois to Argentina

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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EZE
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Illinois to Argentina

Cheapest flights from Illinois to Argentina
Explore the most affordable flight options available from Illinois to Argentina. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:45 amORD - EZE
1 stop15h 20mMultiple Airlines
Sat 1/315:35 amEZE - ORD
2 stops29h 43mMultiple Airlines
Deal found 12/16$767
This Booking.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/315:45 amORD - EZE
1 stop15h 20mArajet
Sun 1/188:40 amEZE - ORD
1 stop15h 30mArajet
Deal found 12/16$826
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:10 amORD - EZE
1 stop34h 05mMultiple Airlines
Thu 1/295:00 pmEZE - ORD
2 stops23h 14mMultiple Airlines
Deal found 12/16$891
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Wed 12/316:05 pmORD - EZE
3 stops33h 50mMultiple Airlines
Sun 1/188:40 amEZE - ORD
1 stop15h 30mMultiple Airlines
Deal found 12/16$943
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Wed 12/315:45 amORD - AEP
2 stops27h 45mMultiple Airlines
Sun 1/1811:30 amAEP - ORD
2 stops35h 50mMultiple Airlines
Deal found 12/16$947
This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:45 amORD - COR
1 stop13h 39mArajet
Sat 1/103:35 amCOR - ORD
1 stop20h 35mArajet
Deal found 12/16$1,008
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:45 amORD - EZE
1 stop15h 20mMultiple Airlines
Sat 1/109:15 pmEZE - ORD
2 stops38h 03mMultiple Airlines
Deal found 12/16$1,031
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:45 amORD - EZE
1 stop15h 20mMultiple Airlines
Sat 1/109:15 pmEZE - ORD
2 stops38h 03mMultiple Airlines
Deal found 12/16$1,047
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:45 amORD - EZE
1 stop15h 20mArajet
Fri 1/99:15 pmEZE - ORD
1 stop14h 42mArajet
Deal found 12/16$1,050
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:50 amMDW - EZE
2 stops17h 30mLATAM Airlines
Wed 1/284:05 amEZE - MDW
2 stops21h 17mLATAM Airlines
Deal found 12/16$1,090
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:29 pmMDW - EZE
1 stop12h 51mLATAM Airlines
Sat 1/318:05 amEZE - MDW
2 stops17h 17mLATAM Airlines
Deal found 12/16$1,098
This KAYAK deal was found by Cheapflights users on 12/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:05 pmMDW - EZE
1 stop12h 55mLATAM Airlines
Thu 1/2211:55 pmEZE - MDW
1 stop15h 04mLATAM Airlines
Deal found 12/14$1,148

Find flight deals from Illinois to Argentina

Keep the following information in mind while searching for Illinois to Argentina flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$763
(Kiwi.com)

One-way from

$270
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$1,145
Provider with most accurate pricing for Chicago (CHI)-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Buenos Aires (BUE) flights.
Search Deals
From Illinois to Argentina
Search Deals
One-way flight from Illinois to Argentina
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Argentina 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 December 18, 2025.
Use the filters below to find and compare flights from Illinois to Argentina that are best for you.

Fly from

Illinois

Fly to

Argentina

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 2/25

5:45 am-12:05 am

1 stop15h 20m

Buenos Aires Ministro Pistarini

Sun 3/1

8:40 am-9:10 pm

1 stop15h 30m

$793

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Thu 2/19

3:40 pm-5:10 am

3 stops34h 30m

Buenos Aires Ministro Pistarini

Fri 2/27

9:15 pm-8:57 am

1 stop14h 42m

$878

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 3/2

7:23 pm-7:30 am

2 stops33h 07m

Buenos Aires Jorge Newbery

Wed 3/18

3:55 pm-9:20 pm

2 stops31h 25m

$878

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Tue 2/10

10:20 pm-3:50 pm

1 stop14h 30m

Buenos Aires Ministro Pistarini

Tue 3/3

11:15 am-10:40 pm

1 stop14h 25m

$879

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 5/17

6:34 pm-7:30 am

2 stops34h 56m

Buenos Aires Jorge Newbery

Tue 5/26

5:10 pm-11:27 am

2 stops20h 17m

$883

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 2/10

5:15 am-9:20 pm

3 stops37h 05m

Buenos Aires Jorge Newbery

Tue 2/24

5:15 pm-11:22 am

2 stops21h 07m

$887

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Wed 3/11

11:20 pm-3:50 pm

1 stop14h 30m

Buenos Aires Ministro Pistarini

Mon 3/16

1:40 am-9:20 pm

1 stop21h 40m

$907

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Thu 2/5

12:48 pm-9:00 am

1 stop17h 12m

Buenos Aires Ministro Pistarini

Fri 3/6

2:45 pm-10:16 am

2 stops22h 31m

$916

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Sun 2/15

6:04 pm-3:50 pm

2 stops18h 46m

Buenos Aires Ministro Pistarini

Sun 3/15

8:40 am-10:10 pm

1 stop15h 30m

$919

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Mon 3/2

12:46 pm-9:00 am

1 stop17h 14m

Buenos Aires Ministro Pistarini

Tue 3/17

2:25 am-10:29 pm

2 stops22h 04m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Argentina

Have a flexible travel schedule? Discover the best time to fly to Argentina 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 Argentina

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Argentina (average of $378). Flying from Illinois to Argentina in June is currently the most expensive (average of $1,144). 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 AR?

Find hourly flight availability from Illinois to Argentina. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Illinois to Argentina in the evening. Doing so could potentially save you 51% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Illinois to Argentina?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Argentina. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Argentina flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Argentina. 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 Illinois to Argentina?

    Departing from Illinois to Argentina will take you 14h 30m. 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 cheapest airlines to fly from Illinois to Argentina one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $272. However, be on the lookout for offers from Arajet and Avianca, as they are both options that can get you from Illinois to Argentina for a low price.

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

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

  • How can I find direct flights from Illinois to Argentina?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Argentina 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 Argentina?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Argentina (average of $378). Flying from Illinois to Argentina in June is currently the most expensive (average of $1,144). 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 Argentina

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Illinois to Argentina

Discover the top 7 airlines that operate flights from Illinois to Argentina. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapest$360Average$894FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$609Average$1,133FlexibilityNo cancel feeOn-time70%
AviancaCheapest$750Average$1,087FlexibilityNo cancel feeOn-time71%
DeltaCheapest$951Average$1,202FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$951Average$1,160FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,015Average$1,257FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,186Average$1,265FlexibilityNo cancel feeOn-time81%

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