What airlines fly to Illinois?

American Airlines, Avianca 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 39% 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 January 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.

$372 Cheap Flights from Buenos Aires to Illinois in 2026

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Find the cheapest flights from Buenos Aires to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:45 pm - 11:47 pm

AEP

ORD

34h 02m

3 stops

3:52 pm - 3:40 am

ORD

AEP

57h 48m

3 stops

$680Multiple Airlines

Sat, Apr 25 - Sun, May 10

5:27 am - 11:47 pm

AEP

ORD

44h 20m

2 stops

3:52 pm - 8:40 pm

ORD

AEP

50h 48m

3 stops

$698Multiple Airlines

Sat, Apr 25 - Sun, May 10

5:00 am - 11:59 pm

EZE

ORD

20h 59m

2 stops

3:52 pm - 4:00 am

ORD

EZE

34h 08m

3 stops

$702Multiple Airlines

Sat, Apr 25 - Sun, May 10

8:55 pm - 3:21 pm

EZE

MDW

21h 26m

1 stop

10:49 am - 9:00 am

MDW

EZE

19h 11m

1 stop

$967Delta

Fri, Feb 27 - Fri, Mar 6

8:55 pm - 10:21 am

EZE

MDW

16h 26m

1 stop

6:00 am - 7:20 am

MDW

EZE

22h 20m

1 stop

$975LATAM Airlines

Fri, Feb 27 - Fri, Mar 6

7:45 am - 10:31 pm

EZE

MDW

17h 46m

2 stops

10:49 am - 7:20 am

MDW

EZE

17h 31m

1 stop

$976LATAM Airlines

Fri, Feb 27 - Fri, Mar 6

9:00 pm - 12:22 pm

EZE

STL

17h 22m

2 stops

2:50 pm - 8:00 am

STL

EZE

15h 10m

1 stop

$979Copa Airlines

Tue, Apr 14 - Thu, Jun 11

8:25 pm - 10:16 am

EZE

STL

15h 51m

1 stop

8:15 am - 7:10 am

STL

EZE

20h 55m

1 stop

$987American Airlines

Tue, Apr 7 - Fri, Jun 12

8:25 pm - 1:22 pm

EZE

STL

18h 57m

2 stops

5:02 am - 8:05 pm

STL

EZE

13h 03m

1 stop

$991American Airlines

Tue, Apr 7 - Fri, Jun 12

3:55 am - 11:58 pm

EZE

STL

22h 03m

2 stops

5:30 pm - 2:45 pm

STL

EZE

19h 15m

2 stops

$1,023Delta

Sun, Apr 5 - Thu, Jun 11

Air Canada flights from Buenos Aires to Illinois

Our best Air Canada deals on Buenos Aires to Illinois flight tickets

Air Canada

Apr 23

EZE4:30 pmBuenos Aires Ministro Pistarini

24h 25m

2 stops

ORD2:55 pmChicago O'Hare Intl

Apr 28

ORD12:50 pmChicago O'Hare Intl

23h 40m

2 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

$849

Air Canada

Apr 23

EZE4:30 pmBuenos Aires Ministro Pistarini

20h 23m

2 stops

ORD10:53 amChicago O'Hare Intl

Apr 28

ORD12:50 pmChicago O'Hare Intl

23h 40m

3 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

$857

Air Canada

Apr 29

EZE4:30 pmBuenos Aires Ministro Pistarini

20h 58m

2 stops

ORD11:28 amChicago O'Hare Intl

May 9

ORD9:15 pmChicago O'Hare Intl

39h 15m

2 stops

EZE2:30 pmBuenos Aires Ministro Pistarini

$859

LATAM Airlines flights from Buenos Aires to Illinois

Our best LATAM Airlines deals on Buenos Aires to Illinois flight tickets

LATAM Airlines

Feb 27

EZE8:55 pmBuenos Aires Ministro Pistarini

16h 26m

1 stop

MDW10:21 amChicago Midway

Mar 6

MDW6:00 amChicago Midway

22h 20m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

$975

LATAM Airlines

Mar 7

AEP3:40 pmBuenos Aires Jorge Newbery

20h 20m

2 stops

ORD9:00 amChicago O'Hare Intl

Mar 21

ORD2:59 pmChicago O'Hare Intl

16h 41m

2 stops

AEP9:40 amBuenos Aires Jorge Newbery

$976

LATAM Airlines

Feb 18

EZE8:55 pmBuenos Aires Ministro Pistarini

15h 59m

1 stop

MDW9:54 amChicago Midway

Feb 25

MDW12:45 pmChicago Midway

15h 35m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

$977

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sat 4/25

3:45 pm-11:47 pm

3 stops34h 02m

Chicago O'Hare Intl

Sun 5/10

3:52 pm-3:40 am

3 stops57h 48m

$680

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Sat 4/25

5:27 am-11:47 pm

2 stops44h 20m

Chicago O'Hare Intl

Sun 5/10

3:52 pm-8:40 pm

3 stops50h 48m

$698

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 4/25

5:00 am-11:59 pm

2 stops20h 59m

Chicago O'Hare Intl

Sun 5/10

3:52 pm-4:00 am

3 stops34h 08m

$702

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Fri 2/27

8:55 pm-3:21 pm

1 stop21h 26m

Chicago Midway

Fri 3/6

10:49 am-9:00 am

1 stop19h 11m

$967

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Fri 2/27

8:55 pm-10:21 am

1 stop16h 26m

Chicago Midway

Fri 3/6

6:00 am-7:20 am

1 stop22h 20m

$975

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Fri 2/27

7:45 am-10:31 pm

2 stops17h 46m

Chicago Midway

Fri 3/6

10:49 am-7:20 am

1 stop17h 31m

$976

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/14

9:00 pm-12:22 pm

2 stops17h 22m

Lambert-St Louis

Thu 6/11

2:50 pm-8:00 am

1 stop15h 10m

$979

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/7

8:25 pm-10:16 am

1 stop15h 51m

Lambert-St Louis

Fri 6/12

8:15 am-7:10 am

1 stop20h 55m

$987

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Tue 4/7

8:25 pm-1:22 pm

2 stops18h 57m

Lambert-St Louis

Fri 6/12

5:02 am-8:05 pm

1 stop13h 03m

$991

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Sun 4/5

3:55 am-11:58 pm

2 stops22h 03m

Lambert-St Louis

Thu 6/11

5:30 pm-2:45 pm

2 stops19h 15m

$1,023

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 November. Flight prices, which tend to average around $981, 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 November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $999.

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

You could potentially save up to 21% 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

Fastest flight time	13h 57m
Direct flights	None

The fastest flight from Buenos Aires to Illinois takes 13h 57m

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

Search flight deals

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 January 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
Avianca	PriceFrom $578	Free Cancellation	Rating 6.6 2,492 reviews	Search Avianca flights
American Airlines	PriceFrom $694	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Copa Airlines	PriceFrom $750	Free Cancellation	Rating 7.5 1,560 reviews	Search Copa Airlines flights
United Airlines	PriceFrom $777	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Delta	PriceFrom $884	Free Cancellation	Rating 7.9 8,127 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.