HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Argentina

$297+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EZE
Dec 1 — Dec 81
Mon 12/1
Mon 12/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Argentina with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Argentina

Keep the following information in mind while searching for Illinois to Argentina flight deals. Data was last updated November 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$718
(Copa Airlines)

One-way from

$297
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$984
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. 3% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 1, 2025.

This Copa Airlines deal was found by Cheapflights users on 10/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:56 amORD - COR
1 stop14h 25mCopa Airlines
Sat 11/225:37 amCOR - ORD
1 stop21h 28mCopa Airlines
Deal found 10/30$718
This Copa Airlines deal was found by Cheapflights users on 10/31. 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.
Wed 12/37:33 amORD - COR
1 stop15h 55mCopa Airlines
Sun 12/75:37 amCOR - ORD
1 stop21h 28mCopa Airlines
Deal found 10/31$766
This Mytrip deal was found by Cheapflights users on 10/31. 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.
Sat 11/155:10 amORD - EZE
3 stops21h 00mMultiple Airlines
Fri 12/57:30 amEZE - ORD
3 stops38h 06mMultiple Airlines
Deal found 10/31$768
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:48 amORD - AEP
3 stops35h 12mMultiple Airlines
Thu 12/49:30 pmAEP - ORD
3 stops24h 06mMultiple Airlines
Deal found 10/30$768
This Copa Airlines deal was found by Cheapflights users on 10/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:56 amORD - EZE
1 stop14h 57mCopa Airlines
Tue 12/212:07 amEZE - ORD
1 stop15h 45mCopa Airlines
Deal found 10/30$769
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:41 pmORD - AEP
2 stops32h 49mMultiple Airlines
Fri 12/124:30 pmAEP - ORD
3 stops29h 06mMultiple Airlines
Deal found 10/30$770
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:10 amORD - EZE
3 stops21h 00mMultiple Airlines
Sat 11/222:40 amEZE - ORD
3 stops47h 26mMultiple Airlines
Deal found 10/30$776
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:20 pmORD - EZE
1 stop23h 15mMultiple Airlines
Sun 11/232:40 amEZE - ORD
3 stops47h 26mMultiple Airlines
Deal found 10/30$783
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:00 amORD - EZE
3 stops21h 10mMultiple Airlines
Mon 12/157:30 amEZE - ORD
3 stops43h 39mMultiple Airlines
Deal found 10/30$786
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:16 pmMDW - EZE
2 stops21h 39mMultiple Airlines
Sat 12/1311:00 amEZE - MDW
1 stop14h 30mMultiple Airlines
Deal found 10/30$789
This Copa Airlines deal was found by Cheapflights users on 10/31. 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.
Sun 11/166:56 amORD - EZE
1 stop22h 03mCopa Airlines
Mon 12/112:07 amEZE - ORD
1 stop15h 45mCopa Airlines
Deal found 10/31$789
This Orbitz deal was found by Cheapflights users on 10/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:25 pmORD - EZE
2 stops26h 18mLATAM Airlines
Tue 12/24:05 amEZE - ORD
2 stops21h 38mLATAM Airlines
Deal found 10/30$791

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 November 1, 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

ChicagoCordoba

ORD - COR

ORDCOR

Chicago O'Hare Intl

Tue 11/18

6:56 am-12:21 am

1 stop14h 25m

Cordoba Pajas Blancas

Sat 11/22

5:37 am-12:05 am

1 stop21h 28m

$718

ChicagoCordoba

ORD - COR

ORDCOR

Chicago O'Hare Intl

Wed 12/3

7:33 am-2:28 am

1 stop15h 55m

Cordoba Pajas Blancas

Sun 12/7

5:37 am-12:05 am

1 stop21h 28m

$766

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Thu 11/13

7:10 am-9:20 am

1 stop23h 10m

Buenos Aires Ministro Pistarini

Sun 11/16

10:05 pm-12:15 am

1 stop29h 10m

$769

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 12/5

7:35 am-9:20 am

1 stop22h 45m

Buenos Aires Ministro Pistarini

Sat 12/27

11:55 pm-9:17 am

1 stop36h 22m

$769

ChicagoBuenos Aires

ORD - EZE

ORDEZE

Chicago O'Hare Intl

Fri 12/5

8:55 am-9:00 am

2 stops21h 05m

Buenos Aires Ministro Pistarini

Sat 12/27

8:55 pm-8:47 am

1 stop14h 52m

$815

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 1/21

5:45 am-12:40 pm

2 stops27h 55m

Buenos Aires Jorge Newbery

Wed 2/18

9:50 am-12:30 pm

3 stops29h 40m

$825

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 1/12

3:45 pm-6:40 pm

2 stops23h 55m

Buenos Aires Jorge Newbery

Tue 3/24

5:15 pm-6:04 pm

2 stops26h 49m

$830

ChicagoBuenos Aires

MDW - EZE

MDWEZE

Chicago Midway

Wed 1/21

10:46 am-9:00 am

1 stop19h 14m

Buenos Aires Ministro Pistarini

Wed 2/18

8:55 pm-4:25 pm

1 stop22h 30m

$832

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 1/21

1:55 pm-10:30 am

2 stops17h 35m

Buenos Aires Jorge Newbery

Wed 2/18

3:40 pm-12:44 pm

2 stops24h 04m

$832

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 2/9

6:35 am-10:15 am

2 stops24h 40m

Buenos Aires Ministro Pistarini

Tue 3/10

8:55 pm-9:04 am

1 stop14h 09m

$834

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 60 results
1
2
3
...
6

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 $380). 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 November 1, 2025.

It’s typically best to fly out from Illinois to Argentina in the evening. Doing so could potentially save you 50% 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 25m. Airlines will cover a distance of 5281 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $380). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Argentina

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Jose Maria Cordova Intl flights
John F Kennedy Intl to Jose Maria Cordova Intl flights
John F Kennedy Intl to Guarulhos Intl flights
Fort Lauderdale to Jose Maria Cordova Intl flights
John F Kennedy Intl to Lima flights
John F Kennedy Intl to Guayaquil flights
Miami to Ministro Pistarini flights
John F Kennedy Intl to Bogotá flights
John F Kennedy Intl to Cartagena flights
John F Kennedy Intl to Ministro Pistarini flights
Newark to Jose Maria Cordova Intl flights
John F Kennedy Intl to Rio de Janeiro–Galeão Intl flights
Newark to Lima flights
Miami to Bogotá flights
John F Kennedy Intl to Georgetown flights
Newark to Guarulhos Intl flights
Miami to Guarulhos Intl flights
Miami to Lima flights
LaGuardia to Jose Maria Cordova Intl flights
Newark to Bogotá flights
Fort Lauderdale to Bogotá flights
John F Kennedy Intl to Santiago flights
Los Angeles to Lima flights
Hobby to Jose Maria Cordova Intl flights
LaGuardia to Guarulhos Intl flights
John F Kennedy Intl to Jorge Newbery flights
Boston to Jose Maria Cordova Intl flights
John F Kennedy Intl to Viracopos flights
Dallas/Fort Worth to Jose Maria Cordova Intl flights
LaGuardia to Lima flights
Miami to Jorge Newbery flights
Dulles Intl to Lima flights
LaGuardia to Ministro Pistarini flights
John F Kennedy Intl to Cali flights
Dulles Intl to Bogotá flights
Dulles Intl to Jose Maria Cordova Intl flights
Newark to Ministro Pistarini flights
Miami to Rio de Janeiro–Galeão Intl flights
John F Kennedy Intl to Quito flights
O'Hare Intl to Guarulhos Intl flights
George Bush Intcntl to Jose Maria Cordova Intl flights
Miami to Cartagena flights
Newark to Viracopos flights
John F Kennedy Intl to Enrique Olaya flights
Reagan-National to Lima flights
Los Angeles to Santiago flights
Los Angeles to Ministro Pistarini flights
John F Kennedy Intl to Santos Dumont flights
Orlando to Guarulhos Intl flights
LaGuardia to Viracopos flights

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 November 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapest$360Average$884FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$670Average$1,394FlexibilityNo cancel feeOn-time70%
AviancaCheapest$750Average$1,146FlexibilityNo cancel feeOn-time71%
DeltaCheapest$951Average$1,280FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$975Average$1,173FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,015Average$1,248FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,186Average$1,265FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights