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Cheap flights from Chicago to Buenos Aires from $286

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 11/22. 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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Multiple Airlines Logo
7:41 pm - 3:40 amORD-AEP
28h 59m3 stops
Multiple Airlines Logo
4:30 pm - 6:36 pmAEP-ORD
29h 06m3 stops
$769Multiple Airlines
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Thu, Dec 4 - Fri, Dec 12
Multiple Airlines Logo
7:41 pm - 3:40 amORD-AEP
28h 59m3 stops
Multiple Airlines Logo
9:50 am - 6:36 pmAEP-ORD
35h 46m3 stops
$772Multiple Airlines
Find Deal
Thu, Dec 4 - Fri, Dec 12
Multiple Airlines Logo
6:00 am - 7:30 amORD-AEP
22h 30m2 stops
Multiple Airlines Logo
5:45 am - 6:36 pmAEP-ORD
39h 51m3 stops
$779Multiple Airlines
Find Deal
Tue, Dec 2 - Mon, Dec 8
Multiple Airlines Logo
7:41 pm - 7:30 amORD-AEP
32h 49m2 stops
Multiple Airlines Logo
4:30 pm - 6:36 pmAEP-ORD
29h 06m3 stops
$791Multiple Airlines
Find Deal
Thu, Dec 4 - Fri, Dec 12
Multiple Airlines Logo
6:00 am - 7:30 amORD-AEP
22h 30m2 stops
Multiple Airlines Logo
4:50 am - 9:26 pmAEP-ORD
43h 36m3 stops
$792Multiple Airlines
Find Deal
Tue, Dec 2 - Sun, Dec 7
Multiple Airlines Logo
7:41 pm - 7:30 amORD-AEP
32h 49m2 stops
Multiple Airlines Logo
9:50 am - 6:36 pmAEP-ORD
35h 46m3 stops
$794Multiple Airlines
Find Deal
Thu, Dec 4 - Fri, Dec 12
LATAM Airlines Logo
9:49 am - 7:55 amORD-AEP
19h 06m2 stops
LATAM Airlines Logo
2:55 pm - 12:43 pmAEP-ORD
24h 48m2 stops
$811LATAM Airlines
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Tue, Dec 2 - Mon, Dec 8
LATAM Airlines Logo
6:45 am - 7:55 amORD-AEP
22h 10m2 stops
LATAM Airlines Logo
6:20 pm - 12:39 pmAEP-ORD
21h 19m2 stops
$856LATAM Airlines
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Fri, Nov 7 - Wed, Nov 12
LATAM Airlines Logo
6:00 am - 7:55 amMDW-AEP
22h 55m2 stops
LATAM Airlines Logo
3:40 pm - 11:52 amAEP-MDW
23h 12m2 stops
$902LATAM Airlines
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Wed, Nov 5 - Tue, Nov 25
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$962Avianca
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Mon, Nov 17 - Mon, Nov 24

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
Dec 2
ORD9:49 amChicago O'Hare Intl
19h 06m
2 stops
AEP7:55 amBuenos Aires Jorge Newbery
Dec 8
AEP2:55 pmBuenos Aires Jorge Newbery
24h 48m
2 stops
ORD12:43 pmChicago O'Hare Intl
$811
Find similar
LATAM Airlines
Nov 7
ORD6:45 amChicago O'Hare Intl
22h 10m
2 stops
AEP7:55 amBuenos Aires Jorge Newbery
Nov 12
AEP6:20 pmBuenos Aires Jorge Newbery
21h 19m
2 stops
ORD12:39 pmChicago O'Hare Intl
$856
Find similar
LATAM Airlines
Oct 28
ORD1:08 pmChicago O'Hare Intl
19h 22m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Nov 4
AEP3:40 pmBuenos Aires Jorge Newbery
23h 37m
2 stops
ORD12:17 pmChicago O'Hare Intl
$902
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
Nov 17
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 24
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$962
Find similar
Avianca
Oct 31
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 16
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,137
Find similar
Avianca
Nov 1
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 10
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,215
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 October 23, 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 12/4

7:41 pm-3:40 am

3 stops28h 59m

Buenos Aires Jorge Newbery

Fri 12/12

4:30 pm-6:36 pm

3 stops29h 06m

$769

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 12/4

7:41 pm-3:40 am

3 stops28h 59m

Buenos Aires Jorge Newbery

Fri 12/12

9:50 am-6:36 pm

3 stops35h 46m

$772

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 12/2

6:00 am-7:30 am

2 stops22h 30m

Buenos Aires Jorge Newbery

Mon 12/8

5:45 am-6:36 pm

3 stops39h 51m

$779

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 12/4

7:41 pm-7:30 am

2 stops32h 49m

Buenos Aires Jorge Newbery

Fri 12/12

4:30 pm-6:36 pm

3 stops29h 06m

$791

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 12/2

6:00 am-7:30 am

2 stops22h 30m

Buenos Aires Jorge Newbery

Sun 12/7

4:50 am-9:26 pm

3 stops43h 36m

$792

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 12/4

7:41 pm-7:30 am

2 stops32h 49m

Buenos Aires Jorge Newbery

Fri 12/12

9:50 am-6:36 pm

3 stops35h 46m

$794

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Tue 12/2

9:49 am-7:55 am

2 stops19h 06m

Buenos Aires Jorge Newbery

Mon 12/8

2:55 pm-12:43 pm

2 stops24h 48m

$811

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 11/7

6:45 am-7:55 am

2 stops22h 10m

Buenos Aires Jorge Newbery

Wed 11/12

6:20 pm-12:39 pm

2 stops21h 19m

$856

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Wed 11/5

6:00 am-7:55 am

2 stops22h 55m

Buenos Aires Jorge Newbery

Tue 11/25

3:40 pm-11:52 am

2 stops23h 12m

$902

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 11/17

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Mon 11/24

7:00 am-8:20 pm

1 stop16h 20m

$962

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 17h 26m.

  • 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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