Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Buenos Aires to Illinois from $430

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to Illinois departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Buenos Aires to Illinois

Cheap round-trip flights

Logo
12:05 am - 9:18 amAEP-ORD
35h 13m3 stops
Logo
10:27 am - 8:20 amORD-AEP
19h 53m2 stops
$818
Find Deal
Fri, Sep 19 - Fri, Oct 3
Logo
12:05 am - 9:22 amAEP-ORD
35h 17m3 stops
Logo
10:27 am - 8:30 amORD-AEP
20h 03m2 stops
$824
Find Deal
Thu, Aug 21 - Sun, Sep 7
Logo
4:51 pm - 1:15 pmEZE-ORD
46h 24m2 stops
Logo
3:30 am - 8:15 pmORD-EZE
13h 45m1 stop
$833
Find Deal
Fri, Oct 3 - Sun, Nov 16
American Airlines Logo
10:25 pm - 12:05 pmEZE-ORD
16h 40m1 stop
American Airlines Logo
4:33 pm - 10:50 amORD-EZE
15h 17m1 stop
$1,007American Airlines
Find Deal
Mon, Dec 15 - Fri, Jan 9
American Airlines Logo
11:20 pm - 12:28 pmEZE-ORD
16h 08m2 stops
American Airlines Logo
2:50 pm - 7:05 amORD-EZE
13h 15m1 stop
$1,010American Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 17
Delta Logo
8:10 pm - 8:44 amEZE-STL
14h 34m1 stop
Delta Logo
5:20 pm - 9:45 amSTL-EZE
14h 25m1 stop
$1,055Delta
Find Deal
Fri, Oct 3 - Sat, Oct 11
LATAM Airlines Logo
3:55 am - 11:24 pmEZE-STL
21h 29m2 stops
LATAM Airlines Logo
10:30 am - 5:55 amSTL-EZE
17h 25m2 stops
$1,064LATAM Airlines
Find Deal
Thu, Oct 2 - Sat, Oct 11
Delta Logo
8:55 pm - 12:28 pmEZE-MDW
18h 33m2 stops
Delta Logo
1:00 pm - 9:00 amMDW-EZE
17h 00m2 stops
$1,077Delta
Find Deal
Mon, Nov 3 - Mon, Nov 17
LATAM Airlines Logo
5:00 pm - 12:24 pmAEP-ORD
21h 24m2 stops
LATAM Airlines Logo
5:55 pm - 4:00 pmORD-AEP
19h 05m2 stops
$1,085LATAM Airlines
Find Deal
Thu, Oct 2 - Tue, Dec 2
Avianca Logo
7:00 am - 1:15 pmAEP-ORD
32h 15m1 stop
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
$1,168Avianca
Find Deal
Thu, Oct 2 - Sun, Nov 30

American Airlines flights from Buenos Aires to Illinois

Our best American Airlines deals on Buenos Aires to Illinois flight tickets
American Airlines
Dec 15
EZE10:25 pmBuenos Aires Ministro Pistarini
16h 40m
1 stop
ORD12:05 pmChicago O'Hare Intl
Jan 9
ORD4:33 pmChicago O'Hare Intl
15h 17m
1 stop
EZE10:50 amBuenos Aires Ministro Pistarini
$1,007
Find similar
American Airlines
Nov 3
EZE11:20 pmBuenos Aires Ministro Pistarini
16h 08m
2 stops
ORD12:28 pmChicago O'Hare Intl
Nov 17
ORD2:50 pmChicago O'Hare Intl
13h 15m
1 stop
EZE7:05 amBuenos Aires Ministro Pistarini
$1,010
Find similar
American Airlines
Dec 15
EZE11:20 pmBuenos Aires Ministro Pistarini
17h 55m
2 stops
ORD2:15 pmChicago O'Hare Intl
Jan 9
ORD4:33 pmChicago O'Hare Intl
15h 17m
1 stop
EZE10:50 amBuenos Aires Ministro Pistarini
$1,011
Find similar

Avianca flights from Buenos Aires to Illinois

Our best Avianca deals on Buenos Aires to Illinois flight tickets
Avianca
Aug 21
EZE1:40 amBuenos Aires Ministro Pistarini
13h 35m
1 stop
ORD1:15 pmChicago O'Hare Intl
Sep 7
ORD2:35 pmChicago O'Hare Intl
13h 10m
1 stop
EZE5:45 amBuenos Aires Ministro Pistarini
$1,028
Find similar
Avianca
Aug 8
EZE6:50 amBuenos Aires Ministro Pistarini
32h 25m
1 stop
ORD1:15 pmChicago O'Hare Intl
Sep 8
ORD2:35 pmChicago O'Hare Intl
35h 50m
2 stops
EZE4:25 amBuenos Aires Ministro Pistarini
$1,138
Find similar
Avianca
Oct 2
AEP7:00 amBuenos Aires Jorge Newbery
32h 15m
1 stop
ORD1:15 pmChicago O'Hare Intl
Nov 30
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
$1,168
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Buenos Aires to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Fri 9/19

12:05 am-9:18 am

3 stops35h 13m

Chicago O'Hare Intl

Fri 10/3

10:27 am-8:20 am

2 stops19h 53m

$818

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Thu 8/21

12:05 am-9:22 am

3 stops35h 17m

Chicago O'Hare Intl

Sun 9/7

10:27 am-8:30 am

2 stops20h 03m

$824

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Fri 10/3

4:51 pm-1:15 pm

2 stops46h 24m

Chicago O'Hare Intl

Sun 11/16

3:30 am-8:15 pm

1 stop13h 45m

$833

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 12/15

10:25 pm-12:05 pm

1 stop16h 40m

Chicago O'Hare Intl

Fri 1/9

4:33 pm-10:50 am

1 stop15h 17m

$1,007

Buenos AiresChicago

EZE - ORD

EZEORD

Buenos Aires Ministro Pistarini

Mon 11/3

11:20 pm-12:28 pm

2 stops16h 08m

Chicago O'Hare Intl

Mon 11/17

2:50 pm-7:05 am

1 stop13h 15m

$1,010

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Fri 10/3

8:10 pm-8:44 am

1 stop14h 34m

Lambert-St Louis

Sat 10/11

5:20 pm-9:45 am

1 stop14h 25m

$1,055

Buenos AiresSt. Louis

EZE - STL

EZESTL

Buenos Aires Ministro Pistarini

Thu 10/2

3:55 am-11:24 pm

2 stops21h 29m

Lambert-St Louis

Sat 10/11

10:30 am-5:55 am

2 stops17h 25m

$1,064

Buenos AiresChicago

EZE - MDW

EZEMDW

Buenos Aires Ministro Pistarini

Mon 11/3

8:55 pm-12:28 pm

2 stops18h 33m

Chicago Midway

Mon 11/17

1:00 pm-9:00 am

2 stops17h 00m

$1,077

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Thu 10/2

5:00 pm-12:24 pm

2 stops21h 24m

Chicago O'Hare Intl

Tue 12/2

5:55 pm-4:00 pm

2 stops19h 05m

$1,085

Buenos AiresChicago

AEP - ORD

AEPORD

Buenos Aires Jorge Newbery

Thu 10/2

7:00 am-1:15 pm

1 stop32h 15m

Chicago O'Hare Intl

Sun 11/30

10:20 pm-5:40 am

1 stop28h 20m

$1,168

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Illinois from

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

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Buenos Aires is in October. Flight prices, which tend to average around $1,116, 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 October, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,152.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Buenos Aires to Illinois is on a Wednesday when prices can be found for as low as $1,152. Flights from Buenos Aires to Illinois on a Sunday will generally be more expensive and average around $1,449. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Buenos Aires to Illinois during this time can be as low as $1,178. Flights in the afternoon are often more expensive with an average ticket price of $1,471.

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

You could potentially save up to 4% 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

$430

Fastest flight time

13h 35m

Direct flights

None

Airports in Illinois

3 airports
The best one-way flight to Illinois from Buenos Aires in the past 72 hours is $430. The best round-trip flight deal from Buenos Aires to Illinois found on momondo in the last 72 hours is $818.
The fastest flight from Buenos Aires to Illinois takes 13h 35m
There are no direct flights from Buenos Aires to Illinois. Popular non-direct routes for this connection are Buenos Aires Ministro Pistarini Airport - Chicago O'Hare Intl Airport and Buenos Aires Jorge Newbery Airport - Chicago O'Hare Intl Airport.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)
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?

  • 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
AviancaPriceFrom $882Free CancellationRating
6.7
2,394 reviews
Search Avianca flights
American AirlinesPriceFrom $928Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Copa AirlinesPriceFrom $962Free CancellationRating
7.5
1,500 reviews
Search Copa Airlines flights
DeltaPriceFrom $969Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $1,084Free CancellationRating
7.4
8,917 reviews
Search United 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.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/12
Tue 8/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $47
Flights to Los Angelesfrom $47
Flights to Miamifrom $61
Flights to Chicagofrom $61
Flights to Orlandofrom $60
Flights to Las Vegasfrom $15
Flights to San Franciscofrom $61
Flights to Washington, D.C.from $61
Flights to Bostonfrom $66
Flights to Atlantafrom $49
Flights to Dallasfrom $58
Flights to Seattlefrom $95