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Cheap flights from Chicago to Buenos Aires from $329

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 10/30. 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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Find the cheapest flights from Chicago to Buenos Aires (CHI-AEP)

Cheap round-trip flights

Logo
7:00 am - 5:40 amORD-AEP
19h 40m2 stops
Logo
12:50 pm - 11:42 pmAEP-ORD
37h 52m3 stops
$902
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Thu, Nov 6 - Sun, Nov 16
Logo
7:43 pm - 9:00 pmORD-AEP
47h 17m3 stops
Logo
3:15 am - 9:20 pmAEP-ORD
20h 05m2 stops
$906
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Wed, Oct 15 - Sun, Oct 26
Logo
5:05 am - 6:20 pmORD-AEP
34h 15m3 stops
Logo
4:15 am - 12:15 pmAEP-ORD
35h 00m3 stops
$907
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Wed, Nov 12 - Sun, Nov 16
Logo
5:05 am - 6:20 pmORD-AEP
34h 15m3 stops
Logo
12:05 am - 8:20 pmAEP-ORD
23h 15m2 stops
$908
Find Deal
Wed, Nov 12 - Sun, Nov 16
Avianca Logo
11:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$927Avianca
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Sat, Nov 1 - Thu, Nov 6
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$954Avianca
Find Deal
Fri, Nov 7 - Sat, Nov 22
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$955Avianca
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Tue, Nov 11 - Fri, Nov 21
LATAM Airlines Logo
1:05 pm - 4:00 pmMDW-AEP
23h 55m2 stops
LATAM Airlines Logo
3:40 pm - 9:56 amAEP-MDW
21h 16m2 stops
$1,015LATAM Airlines
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Mon, Jan 19 - Wed, Feb 18
LATAM Airlines Logo
10:40 am - 10:30 amORD-AEP
20h 50m2 stops
LATAM Airlines Logo
8:25 pm - 12:44 pmAEP-ORD
18h 19m2 stops
$1,015LATAM Airlines
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Wed, Mar 4 - Wed, Mar 18
LATAM Airlines Logo
5:09 pm - 4:00 pmMDW-AEP
19h 51m2 stops
LATAM Airlines Logo
8:25 pm - 11:32 pmAEP-MDW
30h 07m2 stops
$1,045LATAM Airlines
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Thu, Nov 6 - Sun, Nov 16

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
Nov 1
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 6
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$927
Find similar
Avianca
Nov 7
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 22
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$954
Find similar
Avianca
Nov 11
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 21
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$955
Find similar

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
Jan 19
MDW1:05 pmChicago Midway
23h 55m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Feb 18
AEP3:40 pmBuenos Aires Jorge Newbery
21h 16m
2 stops
MDW9:56 amChicago Midway
$1,015
Find similar
LATAM Airlines
Nov 6
MDW5:09 pmChicago Midway
19h 51m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Nov 16
AEP8:25 pmBuenos Aires Jorge Newbery
30h 07m
2 stops
MDW11:32 pmChicago Midway
$1,045
Find similar
LATAM Airlines
Feb 15
MDW5:25 pmChicago Midway
19h 35m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Feb 25
AEP5:15 pmBuenos Aires Jorge Newbery
21h 46m
2 stops
MDW12:01 pmChicago Midway
$1,055
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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 September 9, 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

Thu 11/6

7:00 am-5:40 am

2 stops19h 40m

Buenos Aires Jorge Newbery

Sun 11/16

12:50 pm-11:42 pm

3 stops37h 52m

$902

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 10/15

7:43 pm-9:00 pm

3 stops47h 17m

Buenos Aires Jorge Newbery

Sun 10/26

3:15 am-9:20 pm

2 stops20h 05m

$906

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 11/12

5:05 am-6:20 pm

3 stops34h 15m

Buenos Aires Jorge Newbery

Sun 11/16

4:15 am-12:15 pm

3 stops35h 00m

$907

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 11/12

5:05 am-6:20 pm

3 stops34h 15m

Buenos Aires Jorge Newbery

Sun 11/16

12:05 am-8:20 pm

2 stops23h 15m

$908

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 11/1

11:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Thu 11/6

7:00 am-8:20 pm

1 stop16h 20m

$927

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 11/7

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Sat 11/22

7:00 am-8:20 pm

1 stop16h 20m

$954

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 11/11

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Fri 11/21

7:00 am-8:20 pm

1 stop16h 20m

$955

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Mon 1/19

1:05 pm-4:00 pm

2 stops23h 55m

Buenos Aires Jorge Newbery

Wed 2/18

3:40 pm-9:56 am

2 stops21h 16m

$1,015

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 3/4

10:40 am-10:30 am

2 stops20h 50m

Buenos Aires Jorge Newbery

Wed 3/18

8:25 pm-12:44 pm

2 stops18h 19m

$1,015

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Thu 11/6

5:09 pm-4:00 pm

2 stops19h 51m

Buenos Aires Jorge Newbery

Sun 11/16

8:25 pm-11:32 pm

2 stops30h 07m

$1,045

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

Direct flights

None
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 16h 55m.

  • 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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