How does KAYAK find such low prices on flights from Illinois to Buenos Aires?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Buenos Aires. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Buenos Aires?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Buenos Aires?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buenos Aires with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Buenos Aires?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$302 CHEAP FLIGHTS from Illinois to Buenos Aires

KAYAK searches hundreds of travel sites at once for deals on flights to Buenos Aires

...and more

Travelers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

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Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$761

LATAM Airlines

Mon 12/1Wed 12/3

ORD - AEP • 2 stops

Cheapest one-way

$302

Typical prices: $768-$1,283

Multiple Airlines

Wed 12/10

ORD - EZE • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Buenos Aires!

Flight Deals

Cheap Flights from Illinois to Buenos Aires

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Buenos Aires that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Buenos Aires

Mon, Dec 1 - Wed, Dec 3

1:25 pm - 5:00 pmORD-AEP

24h 35m2 stops

12:40 pm - 8:39 amAEP-ORD

46h 59m3 stops

$761LATAM Airlines

Find Deal

Mon, Mar 30 - Tue, Aug 18

4:30 am - 12:05 amORD-EZE

17h 35m1 stop

11:00 am - 11:40 pmEZE-ORD

14h 40m1 stop

$763Arajet

Find Deal

Thu, Dec 4 - Wed, Dec 10

2:16 pm - 9:35 amMDW-EZE

16h 19m1 stop

2:40 am - 9:53 pmEZE-MDW

22h 13m2 stops

$770Multiple Airlines

Find Deal

Mon, Dec 8 - Tue, Dec 16

5:00 am - 5:10 amORD-EZE

21h 10m3 stops

11:00 am - 6:36 pmEZE-ORD

34h 36m1 stop

$783Multiple Airlines

Find Deal

Fri, Nov 28 - Sat, Dec 6

10:47 am - 7:20 amMDW-EZE

17h 33m1 stop

11:55 pm - 11:55 amEZE-MDW

15h 00m1 stop

$902Delta

Find Deal

Sun, Jan 11 - Fri, Jan 23

11:21 am - 7:20 amMDW-EZE

16h 59m1 stop

8:55 pm - 12:46 pmEZE-MDW

18h 51m2 stops

$906Delta

Find Deal

Mon, Feb 9 - Mon, Mar 9

9:57 am - 9:20 amSTL-EZE

20h 23m2 stops

9:05 pm - 2:31 pmEZE-STL

19h 26m2 stops

$1,030United Airlines

Find Deal

Sun, Feb 8 - Wed, Mar 4

4:35 pm - 7:20 amSTL-EZE

35h 45m1 stop

10:05 pm - 3:54 pmEZE-STL

20h 49m1 stop

$1,035United Airlines

Find Deal

Tue, Mar 17 - Tue, Mar 31

11:30 am - 7:15 amSTL-EZE

17h 45m1 stop

11:30 pm - 11:37 pmEZE-STL

26h 07m1 stop

$1,037American Airlines

Find Deal

Mon, Dec 22 - Mon, Jan 19

7:10 pm - 8:05 amCMI-EZE

33h 55m2 stops

8:45 pm - 3:01 pmEZE-CMI

21h 16m2 stops

$1,453American Airlines

Find Deal

Useful Info

Low season	August
High season	December
Cheapest flight	$302

Best time to beat the crowds but there is an average 6% increase in price.

Most popular time to fly with an average 9% increase in price.

Flight from Chicago to Buenos Aires

How does KAYAK find such low prices on flights from Illinois to Buenos Aires?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Buenos Aires.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Buenos Aires?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Buenos Aires?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buenos Aires with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Buenos Aires?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Buenos Aires

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Illinois

First Class flights to Buenos Aires

Business Class flights to Buenos Aires

Prem Econ Class flights to Buenos Aires

Economy Class flights to Buenos Aires

$302 Find Cheap Flights from Illinois to Buenos Aires

KAYAK searches hundreds of travel sites at once for deals on flights to Buenos Aires

Everything you should know

Cheap Flights from Illinois to Buenos Aires

Recent round-trip flight deals from Illinois to Buenos Aires

Recent one-way flight deals from Illinois to Buenos Aires

Recent last minute flight deals from Illinois to Buenos Aires

Good to know

FAQs for booking flights from Illinois to Buenos Aires

How does KAYAK find such low prices on flights from Illinois to Buenos Aires?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Buenos Aires.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Buenos Aires?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Buenos Aires?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buenos Aires with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Buenos Aires?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Buenos Aires

Cabin class types available on flights to Illinois

Complete your trip to Buenos Aires with a hotel stay or car rental

Find direct flights for Buenos Aires

Flights to other popular destinations

Flights from domestic origins to Buenos Aires

Choose which airport to fly into in Buenos Aires

Find deals for your return flight