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Cheap flights from Chicago to Buenos Aires from $268

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Buenos Aires departing on 12/31. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 am - 9:20 pm
ORD
-
AEP
35h 00m3 stops
Multiple Airlines Logo
5:45 am - 11:22 am
AEP
-
ORD
32h 37m3 stops
$800Multiple Airlines
Wed, Feb 4 - Tue, Feb 10
Multiple Airlines Logo
7:20 am - 9:20 pm
ORD
-
AEP
35h 00m3 stops
Multiple Airlines Logo
8:50 am - 11:22 am
AEP
-
ORD
29h 32m3 stops
$806Multiple Airlines
Tue, Jan 20 - Sat, Jan 31
Multiple Airlines Logo
4:30 am - 1:20 pm
ORD
-
AEP
30h 50m2 stops
Multiple Airlines Logo
2:30 pm - 1:15 pm
AEP
-
ORD
24h 45m2 stops
$810Multiple Airlines
Mon, Apr 13 - Tue, Apr 28
Multiple Airlines Logo
6:57 pm - 3:40 am
ORD
-
AEP
29h 43m3 stops
Multiple Airlines Logo
10:30 am - 6:16 pm
AEP
-
ORD
34h 46m3 stops
$819Multiple Airlines
Sat, Jan 10 - Fri, Jan 30
Multiple Airlines Logo
11:27 am - 8:40 pm
ORD
-
AEP
31h 13m3 stops
Multiple Airlines Logo
5:10 pm - 11:47 pm
AEP
-
ORD
32h 37m2 stops
$822Multiple Airlines
Sat, Apr 11 - Sat, Apr 25
Multiple Airlines Logo
6:05 pm - 3:40 am
ORD
-
AEP
30h 35m3 stops
Multiple Airlines Logo
4:30 pm - 6:16 pm
AEP
-
ORD
28h 46m3 stops
$824Multiple Airlines
Mon, Jan 5 - Fri, Jan 23
Multiple Airlines Logo
10:27 am - 8:40 pm
ORD
-
AEP
32h 13m3 stops
Multiple Airlines Logo
10:35 am - 1:15 pm
AEP
-
ORD
28h 40m3 stops
$826Multiple Airlines
Mon, Apr 13 - Tue, Apr 28
Multiple Airlines Logo
6:05 pm - 7:30 am
ORD
-
AEP
34h 25m2 stops
Multiple Airlines Logo
10:30 am - 6:16 pm
AEP
-
ORD
34h 46m3 stops
$832Multiple Airlines
Sun, Jan 4 - Fri, Jan 23
LATAM Airlines Logo
10:49 am - 9:40 am
MDW
-
AEP
20h 51m2 stops
LATAM Airlines Logo
5:05 pm - 12:02 pm
AEP
-
MDW
20h 57m2 stops
$1,008LATAM Airlines
Wed, Mar 25 - Mon, Apr 6
LATAM Airlines Logo
12:47 pm - 9:40 am
MDW
-
AEP
18h 53m2 stops
LATAM Airlines Logo
5:05 pm - 12:02 pm
AEP
-
MDW
20h 57m2 stops
$1,048LATAM Airlines
Sun, Mar 29 - Mon, Apr 6

LATAM Airlines flights from Chicago to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Chicago to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Mar 25
MDW12:47 pmChicago Midway
18h 53m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
Apr 1
AEP8:40 amBuenos Aires Jorge Newbery
27h 15m
2 stops
MDW9:55 amChicago Midway
$1,008
Find similar
LATAM Airlines
Mar 29
MDW12:47 pmChicago Midway
18h 53m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
Apr 7
AEP5:05 pmBuenos Aires Jorge Newbery
18h 50m
2 stops
MDW9:55 amChicago Midway
$1,048
Find similar
LATAM Airlines
Mar 27
MDW5:38 pmChicago Midway
24h 02m
2 stops
AEP7:40 pmBuenos Aires Jorge Newbery
Apr 3
AEP5:05 pmBuenos Aires Jorge Newbery
18h 50m
2 stops
MDW9:55 amChicago Midway
$1,088
Find similar

Avianca flights from Chicago to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on Chicago to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Dec 7
ORD7:35 amChicago O'Hare Intl
19h 05m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Dec 9
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,142
Find similar
Avianca
Dec 8
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Dec 11
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,207
Find similar
Avianca
Dec 7
ORD7:35 amChicago O'Hare Intl
19h 05m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Dec 9
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,311
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 December 4, 2025.
Use the filters below to find and compare flights from Chicago 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

Wed 2/4

7:20 am-9:20 pm

3 stops35h 00m

Buenos Aires Jorge Newbery

Tue 2/10

5:45 am-11:22 am

3 stops32h 37m

$800

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 1/20

7:20 am-9:20 pm

3 stops35h 00m

Buenos Aires Jorge Newbery

Sat 1/31

8:50 am-11:22 am

3 stops29h 32m

$806

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 4/13

4:30 am-1:20 pm

2 stops30h 50m

Buenos Aires Jorge Newbery

Tue 4/28

2:30 pm-1:15 pm

2 stops24h 45m

$810

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 1/10

6:57 pm-3:40 am

3 stops29h 43m

Buenos Aires Jorge Newbery

Fri 1/30

10:30 am-6:16 pm

3 stops34h 46m

$819

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 4/11

11:27 am-8:40 pm

3 stops31h 13m

Buenos Aires Jorge Newbery

Sat 4/25

5:10 pm-11:47 pm

2 stops32h 37m

$822

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 1/5

6:05 pm-3:40 am

3 stops30h 35m

Buenos Aires Jorge Newbery

Fri 1/23

4:30 pm-6:16 pm

3 stops28h 46m

$824

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 4/13

10:27 am-8:40 pm

3 stops32h 13m

Buenos Aires Jorge Newbery

Tue 4/28

10:35 am-1:15 pm

3 stops28h 40m

$826

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 1/4

6:05 pm-7:30 am

2 stops34h 25m

Buenos Aires Jorge Newbery

Fri 1/23

10:30 am-6:16 pm

3 stops34h 46m

$832

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Wed 3/25

10:49 am-9:40 am

2 stops20h 51m

Buenos Aires Jorge Newbery

Mon 4/6

5:05 pm-12:02 pm

2 stops20h 57m

$1,008

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Sun 3/29

12:47 pm-9:40 am

2 stops18h 53m

Buenos Aires Jorge Newbery

Mon 4/6

5:05 pm-12:02 pm

2 stops20h 57m

$1,048

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 Chicago 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

What is the cheapest time of day to depart on your flight to Buenos Aires Jorge Newbery Airport?

Flying to Buenos Aires Jorge Newbery Airport from Chicago at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,202 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to Buenos Aires Jorge Newbery Airport, so prices are often more expensive at around $1,263 per ticket.

When to book flights from Chicago to Buenos Aires Jorge Newbery Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Buenos Aires Jorge Newbery Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Buenos Aires Jorge Newbery Airport (CHI to AEP) flight deals and tips

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

Fastest flight time

17h 49m

Direct flights

None
The fastest flight from Chicago to Buenos Aires Jorge Newbery Airport takes 17h 49m
There are no direct flights from Chicago to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Chicago to Buenos Aires Jorge Newbery Airport.
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  • How far is Chicago to Buenos Aires Jorge Newbery by plane?

    The straight-line distance from Chicago to Buenos Aires Jorge Newbery is 5592.1 mi. By plane, this route typically takes 17h 01m.

  • When did momondo last update prices for flights from Chicago to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Chicago to Buenos Aires Jorge Newbery Airport are updated daily.

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

    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 Chicago to Buenos Aires Jorge Newbery Airport.

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

    The travel and health documents required for your trip to Buenos Aires Jorge Newbery Airport 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 Buenos Aires Jorge Newbery Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Buenos Aires. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Buenos Aires from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buenos Aires from Chicago.

I’m not ready to book a flight from Chicago to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from Chicago 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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