What is the cheapest airline that flies from Buenos Aires to Illinois?

Arajet, American Airlines, and Copa Airlines are the most popular carriers operating from Buenos Aires to Illinois

What airlines fly to Illinois?

American Airlines, Delta and Copa Airlines are the top three most popular airlines that fly to Illinois from Buenos Aires according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Buenos Aires to Illinois?

Prices for flights from Buenos Aires to Illinois are updated daily.

How many operators does momondo search for flights from Buenos Aires to Illinois?

There are 5 operators available for flights from Buenos Aires to Illinois as of October 2026.

How old do you have to be to fly from Buenos Aires to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buenos Aires to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$301 Cheap Flights from Buenos Aires to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buenos Aires to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:00 am - 10:40 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

14h 40m1 stop Punta Cana

12:12 pm - 4:20 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 08m1 stop Punta Cana

$832Arajet

Thu, Feb 25 - Sat, Apr 3

11:05 pm - 10:10 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

14h 05m1 stop Punta Cana

4:20 am - 10:05 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 45m1 stop Punta Cana

$872Arajet

Fri, Dec 4 - Sun, Dec 6

6:15 am - 10:13 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

42h 58m2 stops Lima J Chavez Intl Mexico City Benito Juarez

11:10 am - 4:00 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

13h 50m1 stop Punta Cana

$912Multiple Airlines

Sat, Feb 27 - Sat, Mar 6

4:55 pm - 10:13 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

32h 18m2 stops Lima J Chavez Intl Mexico City Benito Juarez

4:20 am - 10:05 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 45m1 stop Punta Cana

$925Multiple Airlines

Sat, Jan 23 - Sun, Feb 28

9:10 pm - 9:42 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

15h 32m1 stop New York John F Kennedy Intl

4:46 pm - 10:15 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 29m1 stop Miami

$1,144American Airlines

Sat, Dec 12 - Tue, Jan 12

9:30 pm - 6:23 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

23h 53m1 stop Miami

12:56 pm - 10:35 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

18h 39m1 stop New York John F Kennedy Intl

$1,144American Airlines

Sun, Nov 15 - Sun, Nov 22

11:35 pm - 12:24 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

15h 49m1 stop Atlanta Hartsfield-Jackson

5:55 pm - 9:40 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

12h 45m1 stop Atlanta Hartsfield-Jackson

$1,151Delta

Tue, Dec 15 - Mon, Feb 15

4:50 pm - 5:43 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

26h 53m1 stop Toronto Pearson Intl

4:30 pm - 3:05 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

20h 35m1 stop Toronto Pearson Intl

$1,163Avianca

Wed, Mar 17 - Fri, Mar 26

4:50 pm - 5:43 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

26h 53m1 stop Toronto Pearson Intl

4:30 pm - 2:30 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

20h 00m1 stop Toronto Pearson Intl

$1,163Avianca

Wed, Mar 17 - Sun, Mar 28

8:05 pm - 1:20 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

20h 15m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

1:30 pm - 10:55 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

18h 25m1 stop New York John F Kennedy Intl

$1,203Delta

Thu, Jan 21 - Sun, Jan 31

Cheap last minute flights

Enter your travel dates to find the best prices.

7:45 am - 11:40 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

17h 55m1 stop Punta Cana

5:30 am - 12:05 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

16h 35m1 stop Punta Cana

$842Arajet

Thu, Oct 8 - Mon, Oct 12

7:45 am - 11:40 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

17h 55m1 stop Punta Cana

8:01 am - 4:21 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

18h 20m1 stop Panama City Tocumen Intl

$970Multiple Airlines

Thu, Oct 8 - Tue, Oct 13

11:00 am - 11:40 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

14h 40m1 stop Punta Cana

5:30 am - 12:05 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

16h 35m1 stop Punta Cana

$1,063Arajet

Thu, Oct 8 - Mon, Oct 12

7:45 am - 11:40 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

17h 55m1 stop Punta Cana

7:44 pm - 3:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

30h 01m3 stops Atlanta Hartsfield-Jackson Miami Punta Cana

$1,078Multiple Airlines

Thu, Oct 8 - Mon, Oct 12

8:10 pm - 8:39 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

14h 29m1 stop Atlanta Hartsfield-Jackson

11:21 am - 9:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

20h 24m1 stop Atlanta Hartsfield-Jackson

$1,203Delta

Wed, Oct 7 - Sun, Oct 18

8:10 pm - 10:29 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

16h 19m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

11:21 am - 9:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

20h 24m1 stop Atlanta Hartsfield-Jackson

$1,203Delta

Wed, Oct 7 - Sun, Oct 18

3:48 am - 1:59 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

36h 11m1 stop Panama City Tocumen Intl

8:01 am - 4:36 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

18h 35m1 stop Panama City Tocumen Intl

$1,220Copa Airlines

Wed, Oct 7 - Tue, Oct 13

12:10 am - 12:57 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

26h 47m1 stop Panama City Tocumen Intl

8:01 am - 4:36 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

18h 35m1 stop Panama City Tocumen Intl

$1,230Copa Airlines

Mon, Oct 5 - Tue, Oct 13

7:10 am - 9:20 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

16h 10m1 stop Bogotá El Dorado

11:20 pm - 12:25 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

23h 05m1 stop Bogotá El Dorado

$1,288Avianca

Tue, Oct 6 - Tue, Oct 13

7:00 am - 9:20 pmAEP Buenos Aires Jorge Newbery-ORD Chicago O'Hare Intl

16h 20m1 stop Bogotá El Dorado

11:20 pm - 5:40 amORD Chicago O'Hare Intl-AEP Buenos Aires Jorge Newbery

28h 20m1 stop Bogotá El Dorado

$1,479Avianca

Tue, Oct 6 - Tue, Oct 13

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Arajet flights from Buenos Aires to Illinois

Our best Arajet deals on Buenos Aires to Illinois flight tickets

Arajet

Feb 25

EZE11:00 amBuenos Aires Ministro Pistarini

14h 40m

1 stop

ORD10:40 pmChicago O'Hare Intl

Apr 3

ORD12:12 pmChicago O'Hare Intl

14h 08m

1 stop

EZE4:20 amBuenos Aires Ministro Pistarini

$832

Arajet

Oct 8

EZE7:45 amBuenos Aires Ministro Pistarini

17h 55m

1 stop

ORD11:40 pmChicago O'Hare Intl

Oct 12

ORD5:30 amChicago O'Hare Intl

16h 35m

1 stop

EZE12:05 amBuenos Aires Ministro Pistarini

$842

Arajet

Dec 4

EZE11:05 pmBuenos Aires Ministro Pistarini

14h 05m

1 stop

ORD10:10 amChicago O'Hare Intl

Dec 6

ORD4:20 amChicago O'Hare Intl

14h 45m

1 stop

EZE10:05 pmBuenos Aires Ministro Pistarini

$872

Avianca flights from Buenos Aires to Illinois

Our best Avianca deals on Buenos Aires to Illinois flight tickets

Avianca

Oct 28

AEP7:05 amBuenos Aires Jorge Newbery

16h 25m

1 stop

ORD9:30 pmChicago O'Hare Intl

Nov 10

ORD10:30 pmChicago O'Hare Intl

28h 10m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,215

Avianca

Oct 28

AEP7:05 amBuenos Aires Jorge Newbery

16h 25m

1 stop

ORD9:30 pmChicago O'Hare Intl

Nov 11

ORD10:30 pmChicago O'Hare Intl

28h 10m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,228

Avianca

Feb 25

AEP7:05 amBuenos Aires Jorge Newbery

16h 25m

1 stop

ORD8:30 pmChicago O'Hare Intl

Apr 3

ORD11:20 pmChicago O'Hare Intl

28h 20m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,237

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Thu 2/25

11:00 am-10:40 pm

1 stop14h 40m

Chicago O'Hare Intl

Sat 4/3

12:12 pm-4:20 am

1 stop14h 08m

$832

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Fri 12/4

11:05 pm-10:10 am

1 stop14h 05m

Chicago O'Hare Intl

Sun 12/6

4:20 am-10:05 pm

1 stop14h 45m

$872

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Sat 2/27

6:15 am-10:13 pm

2 stops42h 58m

Chicago O'Hare Intl

Sat 3/6

11:10 am-4:00 am

1 stop13h 50m

$912

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Sat 1/23

4:55 pm-10:13 pm

2 stops32h 18m

Chicago O'Hare Intl

Sun 2/28

4:20 am-10:05 pm

1 stop14h 45m

$925

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Sat 12/12

9:10 pm-9:42 am

1 stop15h 32m

Chicago O'Hare Intl

Tue 1/12

4:46 pm-10:15 am

1 stop14h 29m

$1,144

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Sun 11/15

9:30 pm-6:23 pm

1 stop23h 53m

Chicago O'Hare Intl

Sun 11/22

12:56 pm-10:35 am

1 stop18h 39m

$1,144

Quickest round-trip

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Tue 12/15

11:35 pm-12:24 pm

1 stop15h 49m

Chicago O'Hare Intl

Mon 2/15

5:55 pm-9:40 am

1 stop12h 45m

$1,151

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Wed 3/17

4:50 pm-5:43 pm

1 stop26h 53m

Chicago O'Hare Intl

Fri 3/26

4:30 pm-3:05 pm

1 stop20h 35m

$1,163

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Wed 3/17

4:50 pm-5:43 pm

1 stop26h 53m

Chicago O'Hare Intl

Sun 3/28

4:30 pm-2:30 pm

1 stop20h 00m

$1,163

Buenos AiresChicago

EZE Buenos Aires Ministro Pistarini - ORD Chicago O'Hare Intl

EZEORD

Buenos Aires Ministro Pistarini

Thu 1/21

8:05 pm-1:20 pm

2 stops20h 15m

Chicago O'Hare Intl

Sun 1/31

1:30 pm-10:55 am

1 stop18h 25m

$1,203

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buenos Aires to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Buenos Aires is in September. Flight prices, which tend to average around $899, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $908.

Can stopping save me money on Buenos Aires to Illinois flights?

You could potentially save up to 15% on your flight if you consider stops on a Buenos Aires to Illinois flight.

Cheap Buenos Aires to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buenos Aires to Illinois

Best Price Found	$301
Fastest flight time	14h 25m
Direct flights	None

The best one-way flight to Illinois from Buenos Aires in the past 72 hours is $301. The best round-trip flight deal from Buenos Aires to Illinois found on momondo in the last 72 hours is $832.

The fastest flight from Buenos Aires to Illinois takes 14h 25m

There are no direct flights from Buenos Aires to Illinois. There are no popular flight routes from Buenos Aires to Illinois.

Search flight deals

Frequently asked questions about flying from Buenos Aires to Illinois

When did momondo last update prices for flights from Buenos Aires to Illinois?
Prices for flights from Buenos Aires to Illinois are updated daily.
How many operators does momondo search for flights from Buenos Aires to Illinois?
There are 5 operators available for flights from Buenos Aires to Illinois as of October 2026.
How old do you have to be to fly from Buenos Aires to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buenos Aires to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Buenos Aires to Illinois

Compare and see reviews for airlines that fly from Buenos Aires to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Arajet	PriceFrom $380	Free Cancellation	Rating 6.2 55 reviews	Search Arajet flights
Avianca	PriceFrom $578	Free Cancellation	Rating 6.5 2,557 reviews	Search Avianca flights
Delta	PriceFrom $884	Free Cancellation	Rating 7.8 8,619 reviews	Search Delta flights
American Airlines	PriceFrom $899	Free Cancellation	Rating 7.0 12,110 reviews	Search American Airlines flights
Copa Airlines	PriceFrom $984	Free Cancellation	Rating 7.6 1,543 reviews	Search Copa Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Buenos Aires to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buenos Aires to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Buenos Aires to Illinois with flexible booking policies on momondo?

Flights from Buenos Aires to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Buenos Aires to Illinois?

Once you have performed a search for Buenos Aires to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Buenos Aires to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Buenos Aires to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.