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Cheap flights from Illinois to Buenos Aires from $277

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Buenos Aires departing on 3/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:45 am - 12:40 pm
ORD
-
AEP
27h 55m2 stops
Multiple Airlines Logo
8:05 pm - 11:47 pm
AEP
-
ORD
30h 42m3 stops
$889Multiple Airlines
Mon, Feb 2 - Tue, Feb 17
Multiple Airlines Logo
5:45 am - 12:40 pm
ORD
-
AEP
27h 55m2 stops
Multiple Airlines Logo
5:10 pm - 10:06 pm
AEP
-
ORD
31h 56m2 stops
$897Multiple Airlines
Mon, Feb 2 - Tue, Feb 17
Multiple Airlines Logo
6:57 pm - 3:40 am
ORD
-
AEP
29h 43m3 stops
Multiple Airlines Logo
9:45 pm - 9:10 pm
AEP
-
ORD
26h 25m2 stops
$903Multiple Airlines
Fri, Jan 30 - Sat, Feb 7
LATAM Airlines Logo
10:45 am - 7:55 am
MDW
-
AEP
19h 10m2 stops
LATAM Airlines Logo
5:15 pm - 12:02 pm
AEP
-
MDW
20h 47m2 stops
$917LATAM Airlines
Mon, Mar 16 - Tue, Mar 24
LATAM Airlines Logo
5:59 pm - 2:00 pm
ORD
-
AEP
18h 01m2 stops
LATAM Airlines Logo
8:25 pm - 12:57 pm
AEP
-
ORD
18h 32m2 stops
$917LATAM Airlines
Mon, Mar 16 - Tue, Mar 24
Multiple Airlines Logo
5:45 am - 7:40 pm
ORD
-
AEP
34h 55m3 stops
Multiple Airlines Logo
8:05 pm - 11:47 pm
AEP
-
ORD
30h 42m3 stops
$923Multiple Airlines
Mon, Feb 2 - Tue, Feb 17
Multiple Airlines Logo
7:20 am - 4:00 pm
ORD
-
AEP
29h 40m2 stops
Multiple Airlines Logo
9:45 pm - 9:10 pm
AEP
-
ORD
26h 25m2 stops
$931Multiple Airlines
Fri, Jan 30 - Sat, Feb 7
LATAM Airlines Logo
6:59 pm - 5:00 pm
STL
-
AEP
20h 01m2 stops
LATAM Airlines Logo
5:15 pm - 11:09 am
AEP
-
STL
19h 54m2 stops
$937LATAM Airlines
Tue, Mar 10 - Tue, Mar 24
LATAM Airlines Logo
10:36 am - 10:30 am
ORD
-
AEP
20h 54m2 stops
LATAM Airlines Logo
8:25 pm - 12:57 pm
AEP
-
ORD
18h 32m2 stops
$937LATAM Airlines
Mon, Mar 2 - Mon, Mar 9
LATAM Airlines Logo
10:36 am - 10:30 am
ORD
-
AEP
20h 54m2 stops
LATAM Airlines Logo
8:25 pm - 12:57 pm
AEP
-
ORD
18h 32m2 stops
$947LATAM Airlines
Mon, Mar 2 - Tue, Mar 10

LATAM Airlines flights from Illinois to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Illinois to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Mar 16
MDW10:45 amChicago Midway
19h 10m
2 stops
AEP7:55 amBuenos Aires Jorge Newbery
Mar 24
AEP5:15 pmBuenos Aires Jorge Newbery
20h 47m
2 stops
MDW12:02 pmChicago Midway
$917
LATAM Airlines
Mar 2
ORD10:36 amChicago O'Hare Intl
20h 54m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Mar 9
AEP8:25 pmBuenos Aires Jorge Newbery
18h 32m
2 stops
ORD12:57 pmChicago O'Hare Intl
$937
LATAM Airlines
Mar 2
ORD10:36 amChicago O'Hare Intl
20h 54m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Mar 10
AEP8:25 pmBuenos Aires Jorge Newbery
18h 32m
2 stops
ORD12:57 pmChicago O'Hare Intl
$947

Avianca flights from Illinois to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on Illinois to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Mar 12
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 24
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,067
Avianca
Feb 2
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Feb 17
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,088
Avianca
Mar 6
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 22
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,098

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Buenos Aires Jorge Newbery Airport 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 January 8, 2026.
Use the filters below to find and compare flights from Illinois to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 2/2

5:45 am-12:40 pm

2 stops27h 55m

Buenos Aires Jorge Newbery

Tue 2/17

8:05 pm-11:47 pm

3 stops30h 42m

$889

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 2/2

5:45 am-12:40 pm

2 stops27h 55m

Buenos Aires Jorge Newbery

Tue 2/17

5:10 pm-10:06 pm

2 stops31h 56m

$897

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 1/30

6:57 pm-3:40 am

3 stops29h 43m

Buenos Aires Jorge Newbery

Sat 2/7

9:45 pm-9:10 pm

2 stops26h 25m

$903

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Mon 3/16

10:45 am-7:55 am

2 stops19h 10m

Buenos Aires Jorge Newbery

Tue 3/24

5:15 pm-12:02 pm

2 stops20h 47m

$917

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 3/16

5:59 pm-2:00 pm

2 stops18h 01m

Buenos Aires Jorge Newbery

Tue 3/24

8:25 pm-12:57 pm

2 stops18h 32m

$917

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 2/2

5:45 am-7:40 pm

3 stops34h 55m

Buenos Aires Jorge Newbery

Tue 2/17

8:05 pm-11:47 pm

3 stops30h 42m

$923

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 1/30

7:20 am-4:00 pm

2 stops29h 40m

Buenos Aires Jorge Newbery

Sat 2/7

9:45 pm-9:10 pm

2 stops26h 25m

$931

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Tue 3/10

6:59 pm-5:00 pm

2 stops20h 01m

Buenos Aires Jorge Newbery

Tue 3/24

5:15 pm-11:09 am

2 stops19h 54m

$937

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 3/2

10:36 am-10:30 am

2 stops20h 54m

Buenos Aires Jorge Newbery

Mon 3/9

8:25 pm-12:57 pm

2 stops18h 32m

$937

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 3/2

10:36 am-10:30 am

2 stops20h 54m

Buenos Aires Jorge Newbery

Tue 3/10

8:25 pm-12:57 pm

2 stops18h 32m

$947

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Buenos Aires Jorge Newbery Airport

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

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

You could potentially save up to 40% on your flight if you consider stops on a Illinois to Buenos Aires Jorge Newbery Airport flight.

Cheap Illinois to Buenos Aires Jorge Newbery Airport flight deals and tips

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

Fastest flight time

17h 49m

Direct flights

None
The fastest flight from Illinois to Buenos Aires Jorge Newbery Airport takes 17h 49m
There are no direct flights from Illinois to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Illinois to Buenos Aires Jorge Newbery Airport.
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  • When did momondo last update prices for flights from Illinois to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Illinois to Buenos Aires Jorge Newbery Airport refresh daily.

  • How old do you have to be to fly from Illinois to Buenos Aires Jorge Newbery Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The required travel and health documents for your Buenos Aires Jorge Newbery Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires Jorge Newbery Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Buenos Aires for you.

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

All flight searches from Illinois to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Illinois to Buenos Aires 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 Illinois to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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