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Cheap flights from Chicago to Buenos Aires from $282

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 12/24. 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

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LATAM Airlines Logo
1:14 pm - 9:40 amORD-AEP
17h 26m2 stops
LATAM Airlines Logo
3:40 pm - 8:42 amAEP-ORD
20h 02m2 stops
$761LATAM Airlines
Find Deal
Fri, Nov 28 - Sat, Dec 6
LATAM Airlines Logo
1:25 pm - 2:40 pmORD-AEP
22h 15m2 stops
LATAM Airlines Logo
8:50 am - 10:14 amAEP-ORD
28h 24m2 stops
$786LATAM Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Multiple Airlines Logo
10:59 am - 4:20 amORD-AEP
38h 21m3 stops
Multiple Airlines Logo
4:40 am - 10:11 pmAEP-ORD
44h 31m3 stops
$791Multiple Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
Multiple Airlines Logo
8:59 am - 8:40 pmORD-AEP
32h 41m3 stops
Multiple Airlines Logo
9:50 am - 6:39 pmAEP-ORD
35h 49m3 stops
$800Multiple Airlines
Find Deal
Sun, Jan 25 - Wed, Feb 4
Multiple Airlines Logo
10:27 am - 5:20 pmORD-AEP
27h 53m3 stops
Multiple Airlines Logo
5:45 am - 6:15 pmAEP-ORD
39h 30m3 stops
$824Multiple Airlines
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Sat, Feb 14 - Sun, Mar 1
Multiple Airlines Logo
10:27 am - 5:20 pmORD-AEP
27h 53m3 stops
Multiple Airlines Logo
9:50 am - 6:15 pmAEP-ORD
35h 25m3 stops
$828Multiple Airlines
Find Deal
Sat, Feb 14 - Sat, Feb 28
Multiple Airlines Logo
2:00 pm - 3:40 amORD-AEP
35h 40m3 stops
Multiple Airlines Logo
6:20 pm - 10:10 pmAEP-ORD
29h 50m2 stops
$830Multiple Airlines
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Fri, Mar 13 - Sat, Mar 21
LATAM Airlines Logo
2:49 pm - 10:30 amORD-AEP
16h 41m2 stops
LATAM Airlines Logo
5:15 pm - 10:08 amAEP-ORD
19h 53m2 stops
$832LATAM Airlines
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Wed, Jan 21 - Wed, Feb 18
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$868Avianca
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Mon, Dec 1 - Fri, Dec 5
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$929Avianca
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Wed, Dec 3 - Tue, Dec 9

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
Nov 28
ORD1:14 pmChicago O'Hare Intl
17h 26m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
Dec 6
AEP3:40 pmBuenos Aires Jorge Newbery
20h 02m
2 stops
ORD8:42 amChicago O'Hare Intl
$761
Find similar
LATAM Airlines
Nov 25
ORD1:25 pmChicago O'Hare Intl
22h 15m
2 stops
AEP2:40 pmBuenos Aires Jorge Newbery
Dec 1
AEP8:50 amBuenos Aires Jorge Newbery
28h 24m
2 stops
ORD10:14 amChicago O'Hare Intl
$786
Find similar
LATAM Airlines
Nov 16
ORD9:51 amChicago O'Hare Intl
19h 04m
2 stops
AEP7:55 amBuenos Aires Jorge Newbery
Nov 21
AEP3:40 pmBuenos Aires Jorge Newbery
23h 59m
2 stops
ORD12:39 pmChicago O'Hare Intl
$791
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 1
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Dec 5
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$868
Find similar
Avianca
Dec 3
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Dec 9
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$929
Find similar
Avianca
Nov 16
ORD10:35 amChicago O'Hare Intl
16h 05m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Nov 21
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,007
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 November 6, 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

Fri 11/28

1:14 pm-9:40 am

2 stops17h 26m

Buenos Aires Jorge Newbery

Sat 12/6

3:40 pm-8:42 am

2 stops20h 02m

$761

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 11/25

1:25 pm-2:40 pm

2 stops22h 15m

Buenos Aires Jorge Newbery

Mon 12/1

8:50 am-10:14 am

2 stops28h 24m

$786

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 12/3

10:59 am-4:20 am

3 stops38h 21m

Buenos Aires Jorge Newbery

Tue 12/9

4:40 am-10:11 pm

3 stops44h 31m

$791

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sun 1/25

8:59 am-8:40 pm

3 stops32h 41m

Buenos Aires Jorge Newbery

Wed 2/4

9:50 am-6:39 pm

3 stops35h 49m

$800

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 2/14

10:27 am-5:20 pm

3 stops27h 53m

Buenos Aires Jorge Newbery

Sun 3/1

5:45 am-6:15 pm

3 stops39h 30m

$824

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 2/14

10:27 am-5:20 pm

3 stops27h 53m

Buenos Aires Jorge Newbery

Sat 2/28

9:50 am-6:15 pm

3 stops35h 25m

$828

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 3/13

2:00 pm-3:40 am

3 stops35h 40m

Buenos Aires Jorge Newbery

Sat 3/21

6:20 pm-10:10 pm

2 stops29h 50m

$830

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 1/21

2:49 pm-10:30 am

2 stops16h 41m

Buenos Aires Jorge Newbery

Wed 2/18

5:15 pm-10:08 am

2 stops19h 53m

$832

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 12/1

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Fri 12/5

7:00 am-8:20 pm

1 stop16h 20m

$868

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 12/3

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Tue 12/9

7:00 am-8:20 pm

1 stop16h 20m

$929

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 41m.

  • 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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