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

Arajet, Delta, and American 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 55% 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 August 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.

$273 Cheap Flights from Buenos Aires to Illinois in 2026

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 - 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

$504Arajet

Thu, Oct 1 - Mon, Oct 5

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

14h 40m1 stop Punta Cana

3:20 am - 8:15 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

13h 55m1 stop Punta Cana

$606Arajet

Thu, Oct 22 - Sun, Nov 8

9:45 am - 11:40 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

15h 55m1 stop Punta Cana

5:30 am - 9:20 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

37h 50m2 stops Punta Cana Cordoba Pajas Blancas

$697Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

11:00 am - 1:19 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

28h 19m3 stops Punta Cana Montreal Pierre Elliott Trudeau Intl Toronto Island

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

16h 35m1 stop Punta Cana

$703Multiple Airlines

Thu, Oct 1 - Mon, Oct 5

10:10 am - 11:56 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

16h 46m1 stop Miami

9:40 am - 7:30 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

19h 50m1 stop Dallas/Fort Worth

$1,074American Airlines

Mon, Dec 7 - Thu, Mar 25

10:30 pm - 10:54 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

14h 24m1 stop Miami

4:10 pm - 7:15 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

13h 05m1 stop Miami

$1,074American Airlines

Tue, Sep 1 - Thu, Sep 3

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

16h 10m1 stop Bogotá El Dorado

10:20 pm - 3:50 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 30m1 stop Bogotá El Dorado

$1,078Avianca

Thu, Oct 15 - Sun, Nov 1

5:25 am - 12:57 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

21h 32m1 stop Panama City Tocumen Intl

7:35 am - 2:52 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

16h 17m1 stop Panama City Tocumen Intl

$1,088Copa Airlines

Thu, Oct 22 - Thu, Nov 5

8:59 am - 1:02 amEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

18h 03m1 stop Panama City Tocumen Intl

8:01 am - 2:30 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

16h 29m1 stop Panama City Tocumen Intl

$1,107Copa Airlines

Tue, Sep 1 - Tue, Sep 8

7:30 am - 8:20 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

15h 50m1 stop Bogotá El Dorado

10:20 pm - 3:50 pmORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 30m1 stop Bogotá El Dorado

$1,115Avianca

Sun, Dec 6 - Sun, Dec 13

Cheap last minute flights

Enter your travel dates to find the best prices.

1:10 pm - 3:59 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

28h 49m2 stops Miami Houston George Bush Intcntl

7:05 am - 3:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

42h 40m3 stops Atlanta Hartsfield-Jackson Miami Punta Cana

$929Multiple Airlines

Tue, Aug 18 - Mon, Aug 31

9:05 pm - 4:58 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

21h 53m1 stop New York John F Kennedy Intl

4:10 pm - 8:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

14h 35m1 stop Miami

$938American Airlines

Fri, Aug 21 - Mon, Aug 24

9:05 pm - 12:54 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

17h 49m2 stops New York John F Kennedy Intl Washington, D.C. Reagan-National

12:40 pm - 11:05 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

20h 25m1 stop New York John F Kennedy Intl

$942American Airlines

Fri, Aug 21 - Mon, Aug 24

9:05 pm - 12:54 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

17h 49m2 stops New York John F Kennedy Intl Washington, D.C. Reagan-National

2:59 pm - 8:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

15h 46m2 stops Washington, D.C. Reagan-National Miami

$942American Airlines

Fri, Aug 21 - Mon, Aug 24

1:10 pm - 3:59 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

28h 49m2 stops Miami Houston George Bush Intcntl

7:05 am - 3:45 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

42h 40m3 stops Atlanta Hartsfield-Jackson Miami Punta Cana

$952Multiple Airlines

Tue, Aug 18 - Mon, Aug 31

1:10 pm - 3:59 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

28h 49m2 stops Miami Houston George Bush Intcntl

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

16h 35m1 stop Punta Cana

$964Multiple Airlines

Tue, Aug 18 - Mon, Aug 31

8:10 pm - 12:39 pmEZE Buenos Aires Ministro Pistarini-MDW Chicago Midway

18h 29m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

1:25 pm - 9:45 amMDW Chicago Midway-EZE Buenos Aires Ministro Pistarini

18h 20m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$1,055Delta

Tue, Aug 18 - Sat, Aug 29

8:10 pm - 12:39 pmEZE Buenos Aires Ministro Pistarini-MDW Chicago Midway

18h 29m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

4:39 pm - 9:45 amMDW Chicago Midway-EZE Buenos Aires Ministro Pistarini

15h 06m1 stop Atlanta Hartsfield-Jackson

$1,055Delta

Tue, Aug 18 - Sat, Aug 29

6:10 am - 2:05 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

33h 55m3 stops Quito Mariscal Sucr San José Juan Santamaria Intl Guatemala City La Aurora

3:40 pm - 5:05 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

35h 25m3 stops Guatemala City La Aurora San José Juan Santamaria Intl Guayaquil Jose Joaquin de Olmedo

$1,425Avianca

Tue, Aug 18 - Mon, Aug 31

6:10 am - 2:05 pmEZE Buenos Aires Ministro Pistarini-ORD Chicago O'Hare Intl

33h 55m3 stops Quito Mariscal Sucr San José Juan Santamaria Intl Guatemala City La Aurora

3:40 pm - 5:00 amORD Chicago O'Hare Intl-EZE Buenos Aires Ministro Pistarini

35h 20m3 stops Guatemala City La Aurora San José Juan Santamaria Intl Quito Mariscal Sucr

$1,425Avianca

Tue, Aug 18 - Sun, Aug 30

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Arajet flights from Buenos Aires to Illinois

Our best Arajet deals on Buenos Aires to Illinois flight tickets

Arajet

Oct 1

EZE11:00 amBuenos Aires Ministro Pistarini

14h 40m

1 stop

ORD11:40 pmChicago O'Hare Intl

Oct 5

ORD5:30 amChicago O'Hare Intl

16h 35m

1 stop

EZE12:05 amBuenos Aires Ministro Pistarini

$504

Arajet

Oct 22

EZE11:00 amBuenos Aires Ministro Pistarini

14h 40m

1 stop

ORD11:40 pmChicago O'Hare Intl

Nov 8

ORD3:20 amChicago O'Hare Intl

13h 55m

1 stop

EZE8:15 pmBuenos Aires Ministro Pistarini

$606

Arajet

Oct 22

EZE11:00 amBuenos Aires Ministro Pistarini

14h 40m

1 stop

ORD11:40 pmChicago O'Hare Intl

Nov 8

ORD3:20 amChicago O'Hare Intl

13h 55m

1 stop

EZE8:15 pmBuenos Aires Ministro Pistarini

$607

Avianca flights from Buenos Aires to Illinois

Our best Avianca deals on Buenos Aires to Illinois flight tickets

Avianca

Oct 15

AEP7:00 amBuenos Aires Jorge Newbery

16h 20m

1 stop

ORD9:20 pmChicago O'Hare Intl

Nov 1

ORD10:20 pmChicago O'Hare Intl

28h 20m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,159

Avianca

Nov 2

AEP7:00 amBuenos Aires Jorge Newbery

16h 20m

1 stop

ORD8:20 pmChicago O'Hare Intl

Nov 17

ORD10:20 pmChicago O'Hare Intl

28h 20m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,174

Avianca

Aug 24

AEP7:00 amBuenos Aires Jorge Newbery

16h 20m

1 stop

ORD9:20 pmChicago O'Hare Intl

Nov 3

ORD10:20 pmChicago O'Hare Intl

28h 20m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,313

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 10/1

11:00 am-11:40 pm

1 stop14h 40m

Chicago O'Hare Intl

Mon 10/5

5:30 am-12:05 am

1 stop16h 35m

$504

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Thu 10/22

11:00 am-11:40 pm

1 stop14h 40m

Chicago O'Hare Intl

Sun 11/8

3:20 am-8:15 pm

1 stop13h 55m

$606

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Thu 9/17

9:45 am-11:40 pm

1 stop15h 55m

Chicago O'Hare Intl

Mon 9/21

5:30 am-9:20 pm

2 stops37h 50m

$697

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Thu 10/1

11:00 am-1:19 pm

3 stops28h 19m

Chicago O'Hare Intl

Mon 10/5

5:30 am-12:05 am

1 stop16h 35m

$703

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Mon 12/7

10:10 am-11:56 pm

1 stop16h 46m

Chicago O'Hare Intl

Thu 3/25

9:40 am-7:30 am

1 stop19h 50m

$1,074

Quickest round-trip

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/1

10:30 pm-10:54 am

1 stop14h 24m

Chicago O'Hare Intl

Thu 9/3

4:10 pm-7:15 am

1 stop13h 05m

$1,074

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Thu 10/15

7:10 am-9:20 pm

1 stop16h 10m

Chicago O'Hare Intl

Sun 11/1

10:20 pm-3:50 pm

1 stop14h 30m

$1,078

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Thu 10/22

5:25 am-12:57 am

1 stop21h 32m

Chicago O'Hare Intl

Thu 11/5

7:35 am-2:52 am

1 stop16h 17m

$1,088

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Tue 9/1

8:59 am-1:02 am

1 stop18h 03m

Chicago O'Hare Intl

Tue 9/8

8:01 am-2:30 am

1 stop16h 29m

$1,107

Buenos AiresChicago

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

EZEORD

Buenos Aires Ministro Pistarini

Sun 12/6

7:30 am-8:20 pm

1 stop15h 50m

Chicago O'Hare Intl

Sun 12/13

10:20 pm-3:50 pm

1 stop14h 30m

$1,115

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 December. Flight prices, which tend to average around $914, 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 December, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $924.

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

You could potentially save up to 49% 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	$273
Fastest flight time	14h 40m
Direct flights	None

The best one-way flight to Illinois from Buenos Aires in the past 72 hours is $273. The best round-trip flight deal from Buenos Aires to Illinois found on momondo in the last 72 hours is $504.

The fastest flight from Buenos Aires to Illinois takes 14h 40m

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 August 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
Copa Airlines	PriceFrom $484	Free Cancellation	Rating 7.6 1,557 reviews	Search Copa Airlines flights
Arajet	PriceFrom $506	Free Cancellation	Rating 6.1 54 reviews	Search Arajet flights
Avianca	PriceFrom $578	Free Cancellation	Rating 6.5 2,540 reviews	Search Avianca flights
American Airlines	PriceFrom $820	Free Cancellation	Rating 7.1 11,952 reviews	Search American Airlines flights
Delta	PriceFrom $884	Free Cancellation	Rating 7.8 8,503 reviews	Search Delta 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.