What airlines fly to Illinois?

American Airlines, Delta and Avianca 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 42% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

Arajet, LATAM Airlines, and Delta are the most popular carriers operating 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 4 operators available for flights from Buenos Aires to Illinois as of May 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.

$442 Cheap Flights from Buenos Aires to Illinois in 2026

1 adult

0 bags

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.

8:40 am - 10:10 pm

EZE

ORD

15h 30m

1 stop

5:30 am - 8:15 am

ORD

EZE

24h 45m

1 stop

$818Arajet

Sun, Aug 23 - Mon, Aug 24

9:15 pm - 10:10 pm

EZE

ORD

26h 55m

1 stop

5:30 am - 12:05 am

ORD

EZE

16h 35m

1 stop

$826Arajet

Sat, Oct 3 - Mon, Oct 19

5:00 am - 11:47 pm

EZE

ORD

44h 47m

2 stops

9:48 pm - 9:16 am

ORD

EZE

57h 28m

3 stops

$864Multiple Airlines

Thu, Jun 4 - Wed, Jun 10

12:15 pm - 5:11 pm

EZE

ORD

30h 56m

2 stops

4:30 am - 12:05 am

ORD

EZE

17h 35m

1 stop

$892Multiple Airlines

Sun, Jun 7 - Mon, Jun 22

8:40 am - 10:10 pm

EZE

ORD

15h 30m

1 stop

5:30 pm - 10:26 pm

ORD

EZE

26h 56m

2 stops

$899Multiple Airlines

Sun, Aug 23 - Tue, Aug 25

8:10 pm - 11:56 am

EZE

MDW

17h 46m

1 stop

12:53 pm - 9:45 am

MDW

EZE

18h 52m

1 stop

$1,095LATAM Airlines

Thu, May 21 - Fri, May 29

3:55 am - 10:00 am

EZE

MDW

32h 05m

2 stops

12:53 pm - 9:45 am

MDW

EZE

18h 52m

1 stop

$1,110LATAM Airlines

Wed, May 20 - Fri, May 29

10:40 pm - 11:56 am

EZE

MDW

15h 16m

2 stops

1:27 pm - 9:45 am

MDW

EZE

18h 18m

2 stops

$1,127Delta

Mon, Jul 13 - Mon, Aug 24

8:45 pm - 2:59 pm

EZE

STL

20h 14m

2 stops

10:34 am - 8:50 am

STL

EZE

20h 16m

2 stops

$1,221American Airlines

Thu, Sep 10 - Fri, Sep 18

8:10 pm - 2:38 pm

EZE

STL

20h 28m

1 stop

7:05 pm - 9:45 am

STL

EZE

12h 40m

1 stop

$1,228Delta

Thu, Sep 10 - Fri, Sep 18

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Avianca flights from Buenos Aires to Illinois

Our best Avianca deals on Buenos Aires to Illinois flight tickets

Avianca

May 9

EZE7:10 amBuenos Aires Ministro Pistarini

16h 10m

1 stop

ORD9:20 pmChicago O'Hare Intl

May 12

ORD11:20 pmChicago O'Hare Intl

14h 20m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

$1,126

Avianca

May 16

AEP7:00 amBuenos Aires Jorge Newbery

16h 20m

1 stop

ORD9:20 pmChicago O'Hare Intl

Jun 10

ORD11:20 pmChicago O'Hare Intl

28h 20m

1 stop

AEP5:40 amBuenos Aires Jorge Newbery

$1,173

Avianca

May 20

EZE7:10 amBuenos Aires Ministro Pistarini

16h 10m

1 stop

ORD9:20 pmChicago O'Hare Intl

Jun 3

ORD11:20 pmChicago O'Hare Intl

14h 20m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

$1,185

Arajet flights from Buenos Aires to Illinois

Our best Arajet deals on Buenos Aires to Illinois flight tickets

Arajet

Aug 23

EZE8:40 amBuenos Aires Ministro Pistarini

15h 30m

1 stop

ORD10:10 pmChicago O'Hare Intl

Aug 24

ORD5:30 amChicago O'Hare Intl

24h 45m

1 stop

EZE8:15 amBuenos Aires Ministro Pistarini

$818

Arajet

Oct 3

EZE9:15 pmBuenos Aires Ministro Pistarini

26h 55m

1 stop

ORD10:10 pmChicago O'Hare Intl

Oct 19

ORD5:30 amChicago O'Hare Intl

16h 35m

1 stop

EZE12:05 amBuenos Aires Ministro Pistarini

$826

Arajet

Jul 11

EZE2:45 amBuenos Aires Ministro Pistarini

21h 25m

1 stop

ORD10:10 pmChicago O'Hare Intl

Aug 22

ORD12:12 pmChicago O'Hare Intl

13h 58m

1 stop

EZE4:10 amBuenos Aires Ministro Pistarini

$909

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sun 8/23

8:40 am-10:10 pm

1 stop15h 30m

Chicago O'Hare Intl

Mon 8/24

5:30 am-8:15 am

1 stop24h 45m

$818

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sat 10/3

9:15 pm-10:10 pm

1 stop26h 55m

Chicago O'Hare Intl

Mon 10/19

5:30 am-12:05 am

1 stop16h 35m

$826

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Thu 6/4

5:00 am-11:47 pm

2 stops44h 47m

Chicago O'Hare Intl

Wed 6/10

9:48 pm-9:16 am

3 stops57h 28m

$864

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sun 6/7

12:15 pm-5:11 pm

2 stops30h 56m

Chicago O'Hare Intl

Mon 6/22

4:30 am-12:05 am

1 stop17h 35m

$892

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Sun 8/23

8:40 am-10:10 pm

1 stop15h 30m

Chicago O'Hare Intl

Tue 8/25

5:30 pm-10:26 pm

2 stops26h 56m

$899

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Thu 5/21

8:10 pm-11:56 am

1 stop17h 46m

Chicago Midway

Fri 5/29

12:53 pm-9:45 am

1 stop18h 52m

$1,095

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Wed 5/20

3:55 am-10:00 am

2 stops32h 05m

Chicago Midway

Fri 5/29

12:53 pm-9:45 am

1 stop18h 52m

$1,110

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Mon 7/13

10:40 pm-11:56 am

2 stops15h 16m

Chicago Midway

Mon 8/24

1:27 pm-9:45 am

2 stops18h 18m

$1,127

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 9/10

8:45 pm-2:59 pm

2 stops20h 14m

Lambert-St Louis

Fri 9/18

10:34 am-8:50 am

2 stops20h 16m

$1,221

Quickest round-trip

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 9/10

8:10 pm-2:38 pm

1 stop20h 28m

Lambert-St Louis

Fri 9/18

7:05 pm-9:45 am

1 stop12h 40m

$1,228

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 $217, 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 July is also cheap. Prices for this month can be found on momondo for an average of $248.

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

You could potentially save up to 31% 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	14h 24m
Direct flights	None

The fastest flight from Buenos Aires to Illinois takes 14h 24m

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 4 operators available for flights from Buenos Aires to Illinois as of May 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 6.5 2,523 reviews	Search Avianca flights
American Airlines	PriceFrom $694	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Copa Airlines	PriceFrom $750	Free Cancellation	Rating 7.5 1,580 reviews	Search Copa Airlines flights
Delta	PriceFrom $884	Free Cancellation	Rating 7.9 8,458 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.