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Cheap flights from Chicago to Buenos Aires from $324

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 10/14. 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

Multiple Airlines Logo
10:27 am - 8:20 amORD-AEP
19h 53m2 stops
Multiple Airlines Logo
2:30 pm - 1:15 pmAEP-ORD
24h 45m3 stops
$797Multiple Airlines
Find Deal
Fri, Oct 24 - Wed, Oct 29
Multiple Airlines Logo
10:27 am - 8:40 pmORD-AEP
32h 13m3 stops
Multiple Airlines Logo
2:30 pm - 1:15 pmAEP-ORD
24h 45m3 stops
$800Multiple Airlines
Find Deal
Fri, Oct 24 - Wed, Oct 29
Multiple Airlines Logo
8:50 pm - 7:30 amORD-AEP
31h 40m3 stops
Multiple Airlines Logo
4:50 am - 12:30 pmAEP-ORD
34h 40m2 stops
$803Multiple Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$807Avianca
Find Deal
Sat, Nov 8 - Sun, Nov 16
Multiple Airlines Logo
10:27 am - 8:20 amORD-AEP
19h 53m2 stops
Multiple Airlines Logo
10:15 am - 1:15 pmAEP-ORD
29h 00m2 stops
$817Multiple Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
Avianca Logo
10:35 am - 5:40 amORD-AEP
16h 05m2 stops
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$851Avianca
Find Deal
Wed, Nov 12 - Mon, Nov 17
Avianca Logo
10:20 pm - 5:40 amORD-AEP
28h 20m1 stop
Avianca Logo
7:00 am - 8:20 pmAEP-ORD
16h 20m1 stop
$860Avianca
Find Deal
Wed, Nov 26 - Mon, Dec 8
LATAM Airlines Logo
10:35 am - 7:55 amMDW-AEP
19h 20m2 stops
LATAM Airlines Logo
5:15 pm - 12:01 pmAEP-MDW
20h 46m2 stops
$1,015LATAM Airlines
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Wed, Mar 11 - Mon, Mar 23
LATAM Airlines Logo
3:30 pm - 4:00 pmMDW-AEP
21h 30m2 stops
LATAM Airlines Logo
5:15 pm - 12:01 pmAEP-MDW
21h 46m2 stops
$1,055LATAM Airlines
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Thu, Jan 1 - Sun, Jan 25
LATAM Airlines Logo
10:47 am - 7:55 amMDW-AEP
18h 08m2 stops
LATAM Airlines Logo
3:40 pm - 9:54 amAEP-MDW
21h 14m2 stops
$1,095LATAM Airlines
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Fri, Nov 28 - Sat, Dec 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 11
MDW10:35 amChicago Midway
19h 20m
2 stops
AEP7:55 amBuenos Aires Jorge Newbery
Mar 23
AEP5:15 pmBuenos Aires Jorge Newbery
20h 46m
2 stops
MDW12:01 pmChicago Midway
$1,015
Find similar
LATAM Airlines
Jan 1
MDW3:30 pmChicago Midway
21h 30m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Jan 25
AEP5:15 pmBuenos Aires Jorge Newbery
21h 46m
2 stops
MDW12:01 pmChicago Midway
$1,055
Find similar
LATAM Airlines
Nov 28
MDW10:47 amChicago Midway
18h 08m
2 stops
AEP7:55 amBuenos Aires Jorge Newbery
Dec 6
AEP3:40 pmBuenos Aires Jorge Newbery
21h 14m
2 stops
MDW9:54 amChicago Midway
$1,095
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 8
ORD10:20 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
$807
Find similar
Avianca
Nov 12
ORD10:35 amChicago O'Hare Intl
16h 05m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Nov 17
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$851
Find similar
Avianca
Nov 26
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Dec 8
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$860
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 September 17, 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 10/24

10:27 am-8:20 am

2 stops19h 53m

Buenos Aires Jorge Newbery

Wed 10/29

2:30 pm-1:15 pm

3 stops24h 45m

$797

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 10/24

10:27 am-8:40 pm

3 stops32h 13m

Buenos Aires Jorge Newbery

Wed 10/29

2:30 pm-1:15 pm

3 stops24h 45m

$800

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 11/8

8:50 pm-7:30 am

3 stops31h 40m

Buenos Aires Jorge Newbery

Sat 11/15

4:50 am-12:30 pm

2 stops34h 40m

$803

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Sat 11/8

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Sun 11/16

7:00 am-8:20 pm

1 stop16h 20m

$807

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 10/13

10:27 am-8:20 am

2 stops19h 53m

Buenos Aires Jorge Newbery

Mon 10/20

10:15 am-1:15 pm

2 stops29h 00m

$817

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 11/12

10:35 am-5:40 am

2 stops16h 05m

Buenos Aires Jorge Newbery

Mon 11/17

7:00 am-8:20 pm

1 stop16h 20m

$851

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 11/26

10:20 pm-5:40 am

1 stop28h 20m

Buenos Aires Jorge Newbery

Mon 12/8

7:00 am-8:20 pm

1 stop16h 20m

$860

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Wed 3/11

10:35 am-7:55 am

2 stops19h 20m

Buenos Aires Jorge Newbery

Mon 3/23

5:15 pm-12:01 pm

2 stops20h 46m

$1,015

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Thu 1/1

3:30 pm-4:00 pm

2 stops21h 30m

Buenos Aires Jorge Newbery

Sun 1/25

5:15 pm-12:01 pm

2 stops21h 46m

$1,055

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Fri 11/28

10:47 am-7:55 am

2 stops18h 08m

Buenos Aires Jorge Newbery

Sat 12/6

3:40 pm-9:54 am

2 stops21h 14m

$1,095

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

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 05m.

  • 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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