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Cheap flights from Chicago to Buenos Aires from $306

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 3/25. 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
6:57 pm - 3:40 am
ORD
-
AEP
29h 43m3 stops
Multiple Airlines Logo
5:15 pm - 11:22 am
AEP
-
ORD
21h 07m2 stops
$836Multiple Airlines
Mon, Jan 19 - Fri, Feb 6
Multiple Airlines Logo
9:23 am - 8:40 pm
ORD
-
AEP
32h 17m3 stops
Multiple Airlines Logo
2:30 pm - 8:20 pm
AEP
-
ORD
32h 50m3 stops
$845Multiple Airlines
Mon, Jan 26 - Sun, Feb 8
Multiple Airlines Logo
6:57 pm - 3:40 am
ORD
-
AEP
29h 43m3 stops
Multiple Airlines Logo
11:30 am - 11:22 am
AEP
-
ORD
26h 52m3 stops
$848Multiple Airlines
Mon, Jan 19 - Fri, Feb 6
Multiple Airlines Logo
7:20 am - 8:30 am
ORD
-
AEP
22h 10m2 stops
Multiple Airlines Logo
5:00 pm - 7:38 pm
AEP
-
ORD
29h 38m2 stops
$872Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
12:05 pm - 5:00 pm
ORD
-
AEP
25h 55m2 stops
Multiple Airlines Logo
8:25 pm - 6:29 pm
AEP
-
ORD
25h 04m2 stops
$873Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
7:20 am - 4:00 pm
ORD
-
AEP
29h 40m2 stops
Multiple Airlines Logo
5:15 pm - 11:22 am
AEP
-
ORD
21h 07m2 stops
$884Multiple Airlines
Mon, Jan 19 - Fri, Feb 6
Multiple Airlines Logo
9:23 am - 9:00 pm
ORD
-
AEP
32h 37m3 stops
Multiple Airlines Logo
5:00 pm - 11:22 am
AEP
-
ORD
21h 22m2 stops
$886Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
7:23 pm - 8:30 am
ORD
-
AEP
34h 07m2 stops
Multiple Airlines Logo
2:30 pm - 8:20 pm
AEP
-
ORD
32h 50m3 stops
$894Multiple Airlines
Fri, Feb 27 - Fri, Mar 6
LATAM Airlines Logo
10:49 am - 7:40 am
MDW
-
AEP
18h 51m2 stops
LATAM Airlines Logo
8:05 pm - 12:07 pm
AEP
-
MDW
18h 02m2 stops
$1,000LATAM Airlines
Tue, Apr 21 - Wed, Apr 29
LATAM Airlines Logo
5:31 pm - 4:00 pm
MDW
-
AEP
20h 29m2 stops
LATAM Airlines Logo
8:05 pm - 12:07 pm
AEP
-
MDW
18h 02m2 stops
$1,008LATAM Airlines
Tue, Apr 14 - Tue, Apr 21

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
Jan 31
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Feb 7
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,028
Find similar
Avianca
Jan 18
ORD10:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Jan 23
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD8:20 pmChicago O'Hare Intl
$1,051
Find similar
Avianca
Mar 8
ORD11:20 pmChicago O'Hare Intl
28h 20m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 15
AEP7:00 amBuenos Aires Jorge Newbery
16h 20m
1 stop
ORD9:20 pmChicago O'Hare Intl
$1,057
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
Mar 12
ORD5:59 pmChicago O'Hare Intl
20h 01m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Mar 24
AEP5:15 pmBuenos Aires Jorge Newbery
25h 34m
2 stops
ORD4:49 pmChicago O'Hare Intl
$936
Find similar
LATAM Airlines
Mar 12
ORD5:59 pmChicago O'Hare Intl
20h 01m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Mar 24
AEP5:15 pmBuenos Aires Jorge Newbery
21h 42m
2 stops
ORD12:57 pmChicago O'Hare Intl
$937
Find similar
LATAM Airlines
Apr 21
MDW10:49 amChicago Midway
18h 51m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Apr 29
AEP8:05 pmBuenos Aires Jorge Newbery
18h 02m
2 stops
MDW12:07 pmChicago Midway
$1,000
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 January 1, 2026.
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

Mon 1/19

6:57 pm-3:40 am

3 stops29h 43m

Buenos Aires Jorge Newbery

Fri 2/6

5:15 pm-11:22 am

2 stops21h 07m

$836

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 1/26

9:23 am-8:40 pm

3 stops32h 17m

Buenos Aires Jorge Newbery

Sun 2/8

2:30 pm-8:20 pm

3 stops32h 50m

$845

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 1/19

6:57 pm-3:40 am

3 stops29h 43m

Buenos Aires Jorge Newbery

Fri 2/6

11:30 am-11:22 am

3 stops26h 52m

$848

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 1/28

7:20 am-8:30 am

2 stops22h 10m

Buenos Aires Jorge Newbery

Wed 2/4

5:00 pm-7:38 pm

2 stops29h 38m

$872

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Thu 1/29

12:05 pm-5:00 pm

2 stops25h 55m

Buenos Aires Jorge Newbery

Thu 2/5

8:25 pm-6:29 pm

2 stops25h 04m

$873

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Mon 1/19

7:20 am-4:00 pm

2 stops29h 40m

Buenos Aires Jorge Newbery

Fri 2/6

5:15 pm-11:22 am

2 stops21h 07m

$884

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Wed 1/28

9:23 am-9:00 pm

3 stops32h 37m

Buenos Aires Jorge Newbery

Wed 2/4

5:00 pm-11:22 am

2 stops21h 22m

$886

ChicagoBuenos Aires

ORD - AEP

ORDAEP

Chicago O'Hare Intl

Fri 2/27

7:23 pm-8:30 am

2 stops34h 07m

Buenos Aires Jorge Newbery

Fri 3/6

2:30 pm-8:20 pm

3 stops32h 50m

$894

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Tue 4/21

10:49 am-7:40 am

2 stops18h 51m

Buenos Aires Jorge Newbery

Wed 4/29

8:05 pm-12:07 pm

2 stops18h 02m

$1,000

ChicagoBuenos Aires

MDW - AEP

MDWAEP

Chicago Midway

Tue 4/14

5:31 pm-4:00 pm

2 stops20h 29m

Buenos Aires Jorge Newbery

Tue 4/21

8:05 pm-12:07 pm

2 stops18h 02m

$1,008

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

16h 05m

Direct flights

None
The fastest flight from Chicago to Buenos Aires Jorge Newbery Airport takes 16h 05m
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.
Search flight deals

  • 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.

  • How do I get Price Alerts for flights from Chicago to Buenos Aires Jorge Newbery Airport?

    Search flight deals from Chicago to Buenos Aires Jorge Newbery Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Chicago to Buenos Aires Jorge Newbery Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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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